nixpkgs-suyu/pkgs/development/perl-modules/xml-parser-0001-HACK-Assumes-Expat-paths-are-good.patch

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perlPackages.XMLParser: Work around cross-compilation regression Since 2.44_01, the behaviour for `check_lib` in their `Makefile.PL` has been "fixed" to fail when the `assert_lib` function fails to build the test. * https://github.com/toddr/XML-Parser/commit/2bc1e90c04220a04a0b40d1047d464bc55f56210 Now, this wouldn't be so bad, since it's good to actually test what stuff is being compiled against. Except that *something* is wonky with the cross-compilation build-time Perl. ``` Undefined subroutine &File::Temp::mktemp called at inc/Devel/CheckLib.pm line 236. ``` As far as I know, this is a built-in function from Perl. * https://perldoc.perl.org/File/Temp.html Though, something *else* is wrong with `Checklib.pm`. Side-stepping the issue by (eww) shelling out to `mktemp`, we get these errors: ``` /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src1_0.553056903257133: file not recognized: file truncated collect2: error: ld returned 1 exit status -I/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf-dev/include -L/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf/lib -lexpat /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src2_0.262169388446154: file not recognized: file truncated collect2: error: ld returned 1 exit status Can't link/include C library 'expat.h', 'expat', aborting. ``` Meanwhile, the actual build, while building the library, seemingly has no issues building using those paths. `¯\_(ツ)_/¯`
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From e996904128653c67b04ddbdb1e10cef158098957 Mon Sep 17 00:00:00 2001
From: Samuel Dionne-Riel <samuel@dionne-riel.com>
Date: Fri, 6 Dec 2019 23:00:51 -0500
Subject: [PATCH] [HACK]: Assumes Expat paths are good.
The `check_lib` check fails with the cross-compilation build platform's
Perl, since apparently `mktemp` is missing...
Even then, side-stepping the issue, it seems it is not actually enough
to work, as the compilation fails.
---
Makefile.PL | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/Makefile.PL b/Makefile.PL
index 505d1df..fc38b76 100644
--- a/Makefile.PL
+++ b/Makefile.PL
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@@ -28,12 +28,18 @@ foreach (@ARGV) {
perlPackages.XMLParser: Work around cross-compilation regression Since 2.44_01, the behaviour for `check_lib` in their `Makefile.PL` has been "fixed" to fail when the `assert_lib` function fails to build the test. * https://github.com/toddr/XML-Parser/commit/2bc1e90c04220a04a0b40d1047d464bc55f56210 Now, this wouldn't be so bad, since it's good to actually test what stuff is being compiled against. Except that *something* is wonky with the cross-compilation build-time Perl. ``` Undefined subroutine &File::Temp::mktemp called at inc/Devel/CheckLib.pm line 236. ``` As far as I know, this is a built-in function from Perl. * https://perldoc.perl.org/File/Temp.html Though, something *else* is wrong with `Checklib.pm`. Side-stepping the issue by (eww) shelling out to `mktemp`, we get these errors: ``` /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src1_0.553056903257133: file not recognized: file truncated collect2: error: ld returned 1 exit status -I/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf-dev/include -L/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf/lib -lexpat /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src2_0.262169388446154: file not recognized: file truncated collect2: error: ld returned 1 exit status Can't link/include C library 'expat.h', 'expat', aborting. ``` Meanwhile, the actual build, while building the library, seemingly has no issues building using those paths. `¯\_(ツ)_/¯`
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@ARGV = @replacement_args;
unless (
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- check_lib( # fill in what you prompted the user for here
- lib => [qw(expat)],
- header => ['expat.h'],
- incpath => $expat_incpath,
- ($expat_libpath?
- (libpath => $expat_libpath):()),
- )) {
+ #check_lib( # fill in what you prompted the user for here
+ # lib => [qw(expat)],
+ # header => ['expat.h'],
+ # incpath => $expat_incpath,
+ # ($expat_libpath?
+ # (libpath => $expat_libpath):()),
+ #)
+ # The check_lib implementation fails horribly with cross-compilation.
+ # We are giving known good paths to expat.
+ # And in all cases, the previous behaviour of not actually failing
+ # seemed to work just fine :/.
+ false
+ ) {
perlPackages.XMLParser: Work around cross-compilation regression Since 2.44_01, the behaviour for `check_lib` in their `Makefile.PL` has been "fixed" to fail when the `assert_lib` function fails to build the test. * https://github.com/toddr/XML-Parser/commit/2bc1e90c04220a04a0b40d1047d464bc55f56210 Now, this wouldn't be so bad, since it's good to actually test what stuff is being compiled against. Except that *something* is wonky with the cross-compilation build-time Perl. ``` Undefined subroutine &File::Temp::mktemp called at inc/Devel/CheckLib.pm line 236. ``` As far as I know, this is a built-in function from Perl. * https://perldoc.perl.org/File/Temp.html Though, something *else* is wrong with `Checklib.pm`. Side-stepping the issue by (eww) shelling out to `mktemp`, we get these errors: ``` /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src1_0.553056903257133: file not recognized: file truncated collect2: error: ld returned 1 exit status -I/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf-dev/include -L/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf/lib -lexpat /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src2_0.262169388446154: file not recognized: file truncated collect2: error: ld returned 1 exit status Can't link/include C library 'expat.h', 'expat', aborting. ``` Meanwhile, the actual build, while building the library, seemingly has no issues building using those paths. `¯\_(ツ)_/¯`
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warn <<'Expat_Not_Installed;';
--
2.23.0