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autotools: move -W flags to configure detection

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This lets us use the flags with clang, and to add more flags easily.

Change-Id: I51bb53ffd5ab6da769cdfb422a2c88442f1ff9ad
Reviewed-on: https://chromium-review.googlesource.com/441864
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
This commit is contained in:
Mike Frysinger 2017-02-06 15:10:13 -05:00
parent 8ba59492ab
commit 6cc037526e
9 changed files with 449 additions and 74 deletions
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13
Makefile.am
View file

@ -43,18 +43,7 @@ AM_CXXFLAGS += -I$(top_srcdir)/src/common/android/include
AM_CXXFLAGS += -I$(top_srcdir)/src/common/android/testing/include
endif
if GCC
# These are good warnings to be treated as errors
AM_CXXFLAGS += \
-Werror \
-Werror=missing-braces \
-Werror=non-virtual-dtor \
-Werror=overloaded-virtual \
-Werror=reorder \
-Werror=sign-compare \
-Werror=unused-variable \
-Werror=vla
endif
AM_CXXFLAGS += $(WARN_CXXFLAGS)
if LINUX_HOST
# Build as PIC on Linux, for linux_client_unittest_shlib

86
Makefile.in
View file

@ -129,53 +129,41 @@ host_triplet = @host@
@ANDROID_HOST_TRUE@ -I$(top_srcdir)/src/common/android/include \
@ANDROID_HOST_TRUE@ -I$(top_srcdir)/src/common/android/testing/include
# These are good warnings to be treated as errors
@GCC_TRUE@am__append_2 = \
@GCC_TRUE@ -Werror \
@GCC_TRUE@ -Werror=missing-braces \
@GCC_TRUE@ -Werror=non-virtual-dtor \
@GCC_TRUE@ -Werror=overloaded-virtual \
@GCC_TRUE@ -Werror=reorder \
@GCC_TRUE@ -Werror=sign-compare \
@GCC_TRUE@ -Werror=unused-variable \
@GCC_TRUE@ -Werror=vla
# Build as PIC on Linux, for linux_client_unittest_shlib
@LINUX_HOST_TRUE@am__append_2 = -fPIC
@LINUX_HOST_TRUE@am__append_3 = -fPIC
@LINUX_HOST_TRUE@am__append_4 = -fPIC
bin_PROGRAMS = $(am__EXEEXT_2) $(am__EXEEXT_3) $(am__EXEEXT_4)
check_PROGRAMS = $(am__EXEEXT_5) $(am__EXEEXT_6) $(am__EXEEXT_7) \
$(am__EXEEXT_8) $(am__EXEEXT_9)
EXTRA_PROGRAMS = $(am__EXEEXT_1)
@DISABLE_PROCESSOR_FALSE@am__append_5 = src/libbreakpad.a
@DISABLE_PROCESSOR_FALSE@am__append_6 = breakpad.pc
@DISABLE_PROCESSOR_FALSE@am__append_7 = src/third_party/libdisasm/libdisasm.a
@LINUX_HOST_TRUE@am__append_8 = src/client/linux/libbreakpad_client.a
@LINUX_HOST_TRUE@am__append_9 = breakpad-client.pc
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_10 = \
@DISABLE_PROCESSOR_FALSE@am__append_4 = src/libbreakpad.a
@DISABLE_PROCESSOR_FALSE@am__append_5 = breakpad.pc
@DISABLE_PROCESSOR_FALSE@am__append_6 = src/third_party/libdisasm/libdisasm.a
@LINUX_HOST_TRUE@am__append_7 = src/client/linux/libbreakpad_client.a
@LINUX_HOST_TRUE@am__append_8 = breakpad-client.pc
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_9 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@ src/common/android/breakpad_getcontext.S
@DISABLE_PROCESSOR_FALSE@am__append_11 = \
@DISABLE_PROCESSOR_FALSE@am__append_10 = \
@DISABLE_PROCESSOR_FALSE@ src/processor/microdump_stackwalk \
@DISABLE_PROCESSOR_FALSE@ src/processor/minidump_dump \
@DISABLE_PROCESSOR_FALSE@ src/processor/minidump_stackwalk
@LINUX_HOST_TRUE@am__append_11 = src/client/linux/linux_dumper_unittest_helper \
@LINUX_HOST_TRUE@ src/client/linux/linux_client_unittest_shlib
@LINUX_HOST_TRUE@am__append_12 = src/client/linux/linux_dumper_unittest_helper \
@LINUX_HOST_TRUE@ src/client/linux/linux_client_unittest_shlib
@LINUX_HOST_TRUE@am__append_13 = src/client/linux/linux_dumper_unittest_helper \
@LINUX_HOST_TRUE@ src/client/linux/linux_client_unittest_shlib
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@am__append_14 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@am__append_13 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@ src/tools/linux/core2md/core2md \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@ src/tools/linux/dump_syms/dump_syms \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@ src/tools/linux/md2core/minidump-2-core \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@ src/tools/linux/symupload/minidump_upload \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@ src/tools/linux/symupload/sym_upload
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@@X86_HOST_TRUE@am__append_15 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@@X86_HOST_TRUE@am__append_14 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@@X86_HOST_TRUE@ src/tools/mac/dump_syms/dump_syms_mac
@DISABLE_PROCESSOR_FALSE@am__append_16 = \
@DISABLE_PROCESSOR_FALSE@am__append_15 = \
@DISABLE_PROCESSOR_FALSE@ src/common/test_assembler_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/address_map_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/basic_source_line_resolver_unittest \
@ -206,36 +194,41 @@ EXTRA_PROGRAMS = $(am__EXEEXT_1)
@DISABLE_PROCESSOR_FALSE@ src/processor/stackwalker_x86_unittest \
@DISABLE_PROCESSOR_FALSE@ src/processor/synth_minidump_unittest
@LINUX_HOST_TRUE@am__append_17 = \
@LINUX_HOST_TRUE@am__append_16 = \
@LINUX_HOST_TRUE@ src/client/linux/linux_client_unittest
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@am__append_18 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@am__append_17 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@ src/common/dumper_unittest \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@ src/tools/linux/md2core/minidump_2_core_unittest
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@@X86_HOST_TRUE@am__append_19 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@@X86_HOST_TRUE@am__append_18 = \
@DISABLE_TOOLS_FALSE@@LINUX_HOST_TRUE@@X86_HOST_TRUE@ src/common/mac/macho_reader_unittest
@DISABLE_PROCESSOR_FALSE@@SELFTEST_TRUE@am__append_20 = \
@DISABLE_PROCESSOR_FALSE@@SELFTEST_TRUE@am__append_19 = \
@DISABLE_PROCESSOR_FALSE@@SELFTEST_TRUE@ src/processor/stackwalker_selftest
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_21 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_20 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@ src/common/android/breakpad_getcontext.S
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_22 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_21 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@ src/common/android/breakpad_getcontext_unittest.cc
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_23 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_22 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@ -llog -lm
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_24 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@am__append_23 = \
@ANDROID_HOST_TRUE@@LINUX_HOST_TRUE@ -llog
noinst_PROGRAMS =
subdir = .
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/m4/ax_cxx_compile_stdcxx.m4 \
$(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/configure.ac
am__aclocal_m4_deps = $(top_srcdir)/m4/ax_append_compile_flags.m4 \
$(top_srcdir)/m4/ax_append_flag.m4 \
$(top_srcdir)/m4/ax_check_compile_flag.m4 \
$(top_srcdir)/m4/ax_cxx_compile_stdcxx.m4 \
$(top_srcdir)/m4/ax_pthread.m4 \
$(top_srcdir)/m4/ax_require_defined.m4 \
$(top_srcdir)/configure.ac
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
$(ACLOCAL_M4)
DIST_COMMON = $(srcdir)/Makefile.am $(top_srcdir)/configure \
@ -1963,6 +1956,7 @@ SET_MAKE = @SET_MAKE@
SHELL = @SHELL@
STRIP = @STRIP@
VERSION = @VERSION@
WARN_CXXFLAGS = @WARN_CXXFLAGS@
abs_builddir = @abs_builddir@
abs_srcdir = @abs_srcdir@
abs_top_builddir = @abs_top_builddir@
@ -2019,8 +2013,8 @@ top_srcdir = @top_srcdir@
# This allows #includes to be relative to src/
AM_CPPFLAGS = -I$(top_srcdir)/src
AM_CFLAGS = $(am__append_3)
AM_CXXFLAGS = $(am__append_1) $(am__append_2) $(am__append_4)
AM_CFLAGS = $(am__append_2)
AM_CXXFLAGS = $(am__append_1) $(WARN_CXXFLAGS) $(am__append_3)
# Specify include paths for ac macros
ACLOCAL_AMFLAGS = -I m4
@ -2054,7 +2048,7 @@ includec_HEADERS = $(top_srcdir)/src/common/*.h
includepdir = $(includedir)/$(PACKAGE)/processor
includep_HEADERS = $(top_srcdir)/src/processor/*.h
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = $(am__append_6) $(am__append_9)
pkgconfig_DATA = $(am__append_5) $(am__append_8)
@SYSTEM_TEST_LIBS_FALSE@TEST_CFLAGS = \
@SYSTEM_TEST_LIBS_FALSE@ -I$(top_srcdir)/src/testing/include \
@SYSTEM_TEST_LIBS_FALSE@ -I$(top_srcdir)/src/testing/googletest/include \
@ -2069,9 +2063,9 @@ pkgconfig_DATA = $(am__append_6) $(am__append_9)
@SYSTEM_TEST_LIBS_FALSE@TEST_DEPS = $(TEST_LIBS)
@SYSTEM_TEST_LIBS_TRUE@TEST_DEPS =
check_LIBRARIES = src/testing/libtesting.a
noinst_LIBRARIES = $(am__append_7)
lib_LIBRARIES = $(am__append_5) $(am__append_8)
CLEANFILES = $(am__append_13)
noinst_LIBRARIES = $(am__append_6)
lib_LIBRARIES = $(am__append_4) $(am__append_7)
CLEANFILES = $(am__append_12)
@SYSTEM_TEST_LIBS_FALSE@src_testing_libtesting_a_SOURCES = \
@SYSTEM_TEST_LIBS_FALSE@ src/breakpad_googletest_includes.h \
@SYSTEM_TEST_LIBS_FALSE@ src/testing/googletest/src/gtest-all.cc \
@ -2115,7 +2109,7 @@ CLEANFILES = $(am__append_13)
@LINUX_HOST_TRUE@ src/common/linux/linux_libc_support.cc \
@LINUX_HOST_TRUE@ src/common/linux/memory_mapped_file.cc \
@LINUX_HOST_TRUE@ src/common/linux/safe_readlink.cc \
@LINUX_HOST_TRUE@ $(am__append_10)
@LINUX_HOST_TRUE@ $(am__append_9)
@DISABLE_PROCESSOR_FALSE@src_libbreakpad_a_SOURCES = \
@DISABLE_PROCESSOR_FALSE@ src/google_breakpad/common/breakpad_types.h \
@DISABLE_PROCESSOR_FALSE@ src/google_breakpad/common/minidump_format.h \
@ -2312,15 +2306,15 @@ TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@LINUX_HOST_TRUE@ src/processor/minidump.cc \
@LINUX_HOST_TRUE@ src/processor/pathname_stripper.cc \
@LINUX_HOST_TRUE@ src/processor/proc_maps_linux.cc \
@LINUX_HOST_TRUE@ $(am__append_21) \
@LINUX_HOST_TRUE@ $(am__append_20) \
@LINUX_HOST_TRUE@ src/client/linux/microdump_writer/microdump_writer_unittest.cc \
@LINUX_HOST_TRUE@ $(am__append_22)
@LINUX_HOST_TRUE@ $(am__append_21)
@LINUX_HOST_TRUE@src_client_linux_linux_client_unittest_shlib_CPPFLAGS = \
@LINUX_HOST_TRUE@ $(AM_CPPFLAGS) $(TEST_CFLAGS)
@LINUX_HOST_TRUE@src_client_linux_linux_client_unittest_shlib_LDFLAGS = \
@LINUX_HOST_TRUE@ -shared -Wl,-h,linux_client_unittest_shlib \
@LINUX_HOST_TRUE@ $(am__append_23)
@LINUX_HOST_TRUE@ $(am__append_22)
@LINUX_HOST_TRUE@src_client_linux_linux_client_unittest_shlib_LDADD = \
@LINUX_HOST_TRUE@ src/client/linux/crash_generation/crash_generation_client.o \
@LINUX_HOST_TRUE@ src/client/linux/dump_writer_common/thread_info.o \
@ -2356,7 +2350,7 @@ TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@LINUX_HOST_TRUE@src_client_linux_linux_client_unittest_LDFLAGS = \
@LINUX_HOST_TRUE@ -Wl,-rpath,'$$ORIGIN' \
@LINUX_HOST_TRUE@ -Wl,--build-id=0x000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f \
@LINUX_HOST_TRUE@ $(am__append_24)
@LINUX_HOST_TRUE@ $(am__append_23)
@LINUX_HOST_TRUE@src_client_linux_linux_client_unittest_LDADD = \
@LINUX_HOST_TRUE@ src/client/linux/linux_client_unittest_shlib \
@LINUX_HOST_TRUE@ $(TEST_LIBS)

4
aclocal.m4 vendored
View file

@ -1295,5 +1295,9 @@ AC_SUBST([am__tar])
AC_SUBST([am__untar])
]) # _AM_PROG_TAR
m4_include([m4/ax_append_compile_flags.m4])
m4_include([m4/ax_append_flag.m4])
m4_include([m4/ax_check_compile_flag.m4])
m4_include([m4/ax_cxx_compile_stdcxx.m4])
m4_include([m4/ax_pthread.m4])
m4_include([m4/ax_require_defined.m4])

145
configure vendored
View file

@ -648,6 +648,7 @@ ANDROID_HOST_FALSE
ANDROID_HOST_TRUE
LINUX_HOST_FALSE
LINUX_HOST_TRUE
WARN_CXXFLAGS
HAVE_CXX11
PTHREAD_CFLAGS
PTHREAD_LIBS
@ -655,8 +656,6 @@ PTHREAD_CC
ax_pthread_config
EGREP
GREP
GCC_FALSE
GCC_TRUE
RANLIB
am__fastdepCXX_FALSE
am__fastdepCXX_TRUE
@ -5737,14 +5736,6 @@ else
RANLIB="$ac_cv_prog_RANLIB"
fi
if test "$GCC" = yes; then
GCC_TRUE=
GCC_FALSE='#'
else
GCC_TRUE='#'
GCC_FALSE=
fi
# let the Makefile know if we're gcc
# Check whether --enable-m32 was given.
if test "${enable_m32+set}" = set; then :
@ -7254,6 +7245,136 @@ $as_echo "#define HAVE_CXX11 1" >>confdefs.h
fi
WARN_CXXFLAGS=
ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -Werror=unknown-warning-option" >&5
$as_echo_n "checking whether C++ compiler accepts -Werror=unknown-warning-option... " >&6; }
if ${ax_cv_check_cxxflags___Werror_unknown_warning_option+:} false; then :
$as_echo_n "(cached) " >&6
else
ax_check_save_flags=$CXXFLAGS
CXXFLAGS="$CXXFLAGS -Werror=unknown-warning-option"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
ax_cv_check_cxxflags___Werror_unknown_warning_option=yes
else
ax_cv_check_cxxflags___Werror_unknown_warning_option=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CXXFLAGS=$ax_check_save_flags
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags___Werror_unknown_warning_option" >&5
$as_echo "$ax_cv_check_cxxflags___Werror_unknown_warning_option" >&6; }
if test "x$ax_cv_check_cxxflags___Werror_unknown_warning_option" = xyes; then :
ax_compiler_flags_test="-Werror=unknown-warning-option"
else
ax_compiler_flags_test=""
fi
for flag in -Wmissing-braces -Wnon-virtual-dtor -Woverloaded-virtual -Wreorder -Wsign-compare -Wunused-variable -Wvla ; do
as_CACHEVAR=`$as_echo "ax_cv_check_cxxflags_${ax_compiler_flags_test}_$flag" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts $flag" >&5
$as_echo_n "checking whether C++ compiler accepts $flag... " >&6; }
if eval \${$as_CACHEVAR+:} false; then :
$as_echo_n "(cached) " >&6
else
ax_check_save_flags=$CXXFLAGS
CXXFLAGS="$CXXFLAGS ${ax_compiler_flags_test} $flag"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
eval "$as_CACHEVAR=yes"
else
eval "$as_CACHEVAR=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CXXFLAGS=$ax_check_save_flags
fi
eval ac_res=\$$as_CACHEVAR
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_CACHEVAR"\" = x"yes"; then :
if ${WARN_CXXFLAGS+:} false; then :
case " $WARN_CXXFLAGS " in #(
*" $flag "*) :
{ { $as_echo "$as_me:${as_lineno-$LINENO}: : WARN_CXXFLAGS already contains \$flag"; } >&5
(: WARN_CXXFLAGS already contains $flag) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; } ;; #(
*) :
as_fn_append WARN_CXXFLAGS " $flag"
{ { $as_echo "$as_me:${as_lineno-$LINENO}: : WARN_CXXFLAGS=\"\$WARN_CXXFLAGS\""; } >&5
(: WARN_CXXFLAGS="$WARN_CXXFLAGS") 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }
;;
esac
else
WARN_CXXFLAGS=$flag
{ { $as_echo "$as_me:${as_lineno-$LINENO}: : WARN_CXXFLAGS=\"\$WARN_CXXFLAGS\""; } >&5
(: WARN_CXXFLAGS="$WARN_CXXFLAGS") 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }
fi
else
:
fi
done
as_fn_append WARN_CXXFLAGS " -Werror"
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
# Only build Linux client libs when compiling for Linux
case $host in
*-*-linux* | *-android* )
@ -7780,10 +7901,6 @@ if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
as_fn_error $? "conditional \"am__fastdepCXX\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${GCC_TRUE}" && test -z "${GCC_FALSE}"; then
as_fn_error $? "conditional \"GCC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${LINUX_HOST_TRUE}" && test -z "${LINUX_HOST_FALSE}"; then
as_fn_error $? "conditional \"LINUX_HOST\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5

26
configure.ac
View file

@ -28,7 +28,7 @@
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AC_PREREQ(2.57)
AC_PREREQ(2.64)
AC_INIT(breakpad, 0.1, google-breakpad-dev@googlegroups.com)
dnl Sanity check: the argument is just a file that should exist.
@ -48,7 +48,6 @@ AM_PROG_CC_C_O
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_RANLIB
AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc
dnl This must come before all the feature tests below.
AC_ARG_ENABLE(m32,
@ -77,6 +76,29 @@ AC_CHECK_HEADERS([a.out.h])
AX_CXX_COMPILE_STDCXX(11, noext, mandatory)
dnl Test supported warning flags.
WARN_CXXFLAGS=
dnl This warning flag is used by clang. Its default behavior is to warn when
dnl given an unknown flag rather than error out.
AC_LANG_PUSH([C++])
AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
ax_compiler_flags_test="-Werror=unknown-warning-option"
],[
ax_compiler_flags_test=""
])
AX_APPEND_COMPILE_FLAGS(m4_flatten([
-Wmissing-braces
-Wnon-virtual-dtor
-Woverloaded-virtual
-Wreorder
-Wsign-compare
-Wunused-variable
-Wvla
]), [WARN_CXXFLAGS], [${ax_compiler_flags_test}])
AS_VAR_APPEND([WARN_CXXFLAGS], " -Werror")
AC_LANG_POP([C++])
AC_SUBST([WARN_CXXFLAGS])
# Only build Linux client libs when compiling for Linux
case $host in
*-*-linux* | *-android* )

67
m4/ax_append_compile_flags.m4 Normal file
View file

@ -0,0 +1,67 @@
# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_append_compile_flags.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_APPEND_COMPILE_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
# For every FLAG1, FLAG2 it is checked whether the compiler works with the
# flag. If it does, the flag is added FLAGS-VARIABLE
#
# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
# CFLAGS) is used. During the check the flag is always added to the
# current language's flags.
#
# If EXTRA-FLAGS is defined, it is added to the current language's default
# flags (e.g. CFLAGS) when the check is done. The check is thus made with
# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
# force the compiler to issue an error when a bad flag is given.
#
# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
# NOTE: This macro depends on the AX_APPEND_FLAG and
# AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with
# AX_APPEND_LINK_FLAGS.
#
# LICENSE
#
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 5
AC_DEFUN([AX_APPEND_COMPILE_FLAGS],
[AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
for flag in $1; do
AX_CHECK_COMPILE_FLAG([$flag], [AX_APPEND_FLAG([$flag], [$2])], [], [$3], [$4])
done
])dnl AX_APPEND_COMPILE_FLAGS

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_append_flag.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
#
# DESCRIPTION
#
# FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
# added in between.
#
# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
# CFLAGS) is used. FLAGS-VARIABLE is not changed if it already contains
# FLAG. If FLAGS-VARIABLE is unset in the shell, it is set to exactly
# FLAG.
#
# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 6
AC_DEFUN([AX_APPEND_FLAG],
[dnl
AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
AS_VAR_SET_IF(FLAGS,[
AS_CASE([" AS_VAR_GET(FLAGS) "],
[*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
[
AS_VAR_APPEND(FLAGS,[" $1"])
AC_RUN_LOG([: FLAGS="$FLAGS"])
])
],
[
AS_VAR_SET(FLAGS,[$1])
AC_RUN_LOG([: FLAGS="$FLAGS"])
])
AS_VAR_POPDEF([FLAGS])dnl
])dnl AX_APPEND_FLAG

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
# Check whether the given FLAG works with the current language's compiler
# or gives an error. (Warnings, however, are ignored)
#
# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
# success/failure.
#
# If EXTRA-FLAGS is defined, it is added to the current language's default
# flags (e.g. CFLAGS) when the check is done. The check is thus made with
# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
# force the compiler to issue an error when a bad flag is given.
#
# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 4
AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
[AS_VAR_SET(CACHEVAR,[yes])],
[AS_VAR_SET(CACHEVAR,[no])])
_AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
[m4_default([$2], :)],
[m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_require_defined.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_REQUIRE_DEFINED(MACRO)
#
# DESCRIPTION
#
# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
# been defined and thus are available for use. This avoids random issues
# where a macro isn't expanded. Instead the configure script emits a
# non-fatal:
#
# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
#
# It's like AC_REQUIRE except it doesn't expand the required macro.
#
# Here's an example:
#
# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
#
# LICENSE
#
# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 1
AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
])dnl AX_REQUIRE_DEFINED