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* gnu/packages/patches/gcc-cross-environment-variables.patch: Also use CROSS_ variants: CROSS_C_INCLUDE_PATH, CROSS_CPLUS_INCLUDE_PATH, CROSS_OBJC_INCLUDE_PATH, CROSS_OBJCPLUS_INCLUDE_PATH to be used for system libraries, see https://lists.gnu.org/archive/html/guix-devel/2016-04/msg00620.html. * gnu/packages/cross-base.scm (cross-gcc, cross-gcc-arguments, cross-libc): Use CROSS_*_INCLUDE_PATH (WAS: CPATH). Signed-off-by: Ludovic Courtès <ludo@gnu.org>
65 lines
2.2 KiB
Diff
65 lines
2.2 KiB
Diff
Search path environment variables for cross-compilers. See the discussion
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at <http://gcc.gnu.org/ml/gcc/2013-02/msg00124.html>.
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Note: Touch 'C_INCLUDE_PATH' et al. rather than 'CPATH', as discussed
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at <http://bugs.gnu.org/22186>.
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--- a/gcc/incpath.c
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+++ b/gcc/incpath.c
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@@ -461,8 +461,8 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
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int stdinc, int cxx_stdinc, int verbose)
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{
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static const char *const lang_env_vars[] =
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- { "C_INCLUDE_PATH", "CPLUS_INCLUDE_PATH",
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- "OBJC_INCLUDE_PATH", "OBJCPLUS_INCLUDE_PATH" };
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+ { "CROSS_C_INCLUDE_PATH", "CROSS_CPLUS_INCLUDE_PATH",
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+ "CROSS_OBJC_INCLUDE_PATH", "CROSS_OBJCPLUS_INCLUDE_PATH" };
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cpp_options *cpp_opts = cpp_get_options (pfile);
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size_t idx = (cpp_opts->objc ? 2: 0);
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@@ -473,7 +473,7 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
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/* CPATH and language-dependent environment variables may add to the
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include chain. */
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- add_env_var_paths ("CPATH", BRACKET);
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+ add_env_var_paths ("CROSS_CPATH", BRACKET);
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add_env_var_paths (lang_env_vars[idx], SYSTEM);
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target_c_incpath.extra_pre_includes (sysroot, iprefix, stdinc);
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diff --git a/gcc/system.h b/gcc/system.h
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index 42bc509..af3b9ad 100644
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--- a/gcc/system.h
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+++ b/gcc/system.h
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@@ -1063,4 +1063,6 @@ helper_const_non_const_cast (const char *p)
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/* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */
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#include "hwint.h"
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+#define LIBRARY_PATH_ENV "CROSS_LIBRARY_PATH"
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+
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#endif /* ! GCC_SYSTEM_H */
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diff --git a/gcc/tlink.c b/gcc/tlink.c
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index bc358b8..ad6242f 100644
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--- a/gcc/tlink.c
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+++ b/gcc/tlink.c
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@@ -458,7 +458,7 @@ recompile_files (void)
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file *f;
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putenv (xstrdup ("COMPILER_PATH="));
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- putenv (xstrdup ("LIBRARY_PATH="));
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+ putenv (xstrdup (LIBRARY_PATH_ENV "="));
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while ((f = file_pop ()) != NULL)
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{
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diff --git a/gcc/gcc.c b/gcc/gcc.c
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index adbf0c4..70448c6 100644
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--- a/gcc/gcc.c
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+++ b/gcc/gcc.c
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@@ -3853,7 +3853,7 @@ process_command (unsigned int decoded_options_count,
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}
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temp = getenv (LIBRARY_PATH_ENV);
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- if (temp && *cross_compile == '0')
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+ if (temp)
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{
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const char *startp, *endp;
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char *nstore = (char *) alloca (strlen (temp) + 3);
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