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gnu: GCC: Add cross environment variables patch to GCC 12.

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* gnu/packages/patches/gcc-12-cross-environment-variables.patch : New file.
* gnu/local.mk (dist_patch_DATA): Add
gcc-12-cross-environment-variables.patch.
* gnu/packages/cross-base.scm (cross-gcc)[source](patches): Apply the patch.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Morgan Smith 2022-05-25 17:37:32 -04:00 committed by Ludovic Courtès
parent 56dddd05e8
commit 3f31525546
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GPG Key ID: 090B11993D9AEBB5
3 changed files with 58 additions and 0 deletions
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1
gnu/local.mk
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@ -1131,6 +1131,7 @@ dist_patch_DATA = \
%D%/packages/patches/gcc-9-strmov-store-file-names.patch \
%D%/packages/patches/gcc-12-strmov-store-file-names.patch \
%D%/packages/patches/gcc-10-cross-environment-variables.patch \
%D%/packages/patches/gcc-12-cross-environment-variables.patch \
%D%/packages/patches/gcolor3-update-libportal-usage.patch \
%D%/packages/patches/gd-fix-tests-on-i686.patch \
%D%/packages/patches/gd-brect-bounds.patch \

3
gnu/packages/cross-base.scm
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@ -242,6 +242,9 @@ target that libc."
(append
(origin-patches (package-source xgcc))
(append (cond
((version>=? (package-version xgcc) "12.0")
(search-patches "gcc-12-cross-environment-variables.patch"
"gcc-cross-gxx-include-dir.patch"))
((version>=? (package-version xgcc) "10.0")
(search-patches "gcc-10-cross-environment-variables.patch"
"gcc-cross-gxx-include-dir.patch"))

54
gnu/packages/patches/gcc-12-cross-environment-variables.patch Normal file
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@ -0,0 +1,54 @@
Search path environment variables for cross-compilers. See the discussion
at <http://gcc.gnu.org/ml/gcc/2013-02/msg00124.html>.
Note: Touch 'C_INCLUDE_PATH' et al. rather than 'CPATH', as discussed
at <http://bugs.gnu.org/22186>.
diff --git a/gcc/gcc.cc b/gcc/gcc.cc
--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
@@ -4832,7 +4832,7 @@ process_command (unsigned int decoded_options_count,
}
temp = env.get (LIBRARY_PATH_ENV);
- if (temp && *cross_compile == '0')
+ if (temp)
{
const char *startp, *endp;
char *nstore = (char *) alloca (strlen (temp) + 3);
diff --git a/gcc/incpath.cc b/gcc/incpath.cc
--- a/gcc/incpath.cc
+++ b/gcc/incpath.cc
@@ -480,8 +480,8 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
int stdinc, int cxx_stdinc, int verbose)
{
static const char *const lang_env_vars[] =
- { "C_INCLUDE_PATH", "CPLUS_INCLUDE_PATH",
- "OBJC_INCLUDE_PATH", "OBJCPLUS_INCLUDE_PATH" };
+ { "CROSS_C_INCLUDE_PATH", "CROSS_CPLUS_INCLUDE_PATH",
+ "CROSS_OBJC_INCLUDE_PATH", "CROSS_OBJCPLUS_INCLUDE_PATH" };
cpp_options *cpp_opts = cpp_get_options (pfile);
size_t idx = (cpp_opts->objc ? 2: 0);
@@ -492,7 +492,7 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
/* CPATH and language-dependent environment variables may add to the
include chain. */
- add_env_var_paths ("CPATH", INC_BRACKET);
+ add_env_var_paths ("CROSS_CPATH", INC_BRACKET);
add_env_var_paths (lang_env_vars[idx], INC_SYSTEM);
target_c_incpath.extra_pre_includes (sysroot, iprefix, stdinc);
diff --git a/gcc/system.h b/gcc/system.h
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -1317,4 +1317,6 @@ endswith (const char *str, const char *suffix)
return memcmp (str + str_len - suffix_len, suffix, suffix_len) == 0;
}
+#define LIBRARY_PATH_ENV "CROSS_LIBRARY_PATH"
+
#endif /* ! GCC_SYSTEM_H */
--
2.36.1