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authorMark Mitchell <mark@codesourcery.com>2007-03-12 15:59:06 +0000
committerMark Mitchell <mmitchel@gcc.gnu.org>2007-03-12 15:59:06 +0000
commit6d4817e3740f021599e620067452c223f7b3b397 (patch)
treeb1c057375072b5526bd29466adc19cb4108c1305 /gcc
parent91b0b94a042721a2a8dff04f0a177a37c4f08cad (diff)
downloadgcc-6d4817e3740f021599e620067452c223f7b3b397.tar.gz
cppdefault.c (cpp_EXEC_PREFIX): New variable.
* cppdefault.c (cpp_EXEC_PREFIX): New variable. * cppdefault.h (cpp_PREFIX): Document. (cpp_PREFIX_len): Likewise. (cpp_EXEC_PREFIX): New variable. * Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX. * c-incpath.c (add_standard_paths): Correct logic for relocating paths within prefix. From-SVN: r122843
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog10
-rw-r--r--gcc/Makefile.in1
-rw-r--r--gcc/c-incpath.c25
-rw-r--r--gcc/cppdefault.c1
-rw-r--r--gcc/cppdefault.h8
5 files changed, 40 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9113d5d4b9a..de0dd70eb14 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2007-03-12 Mark Mitchell <mark@codesourcery.com>
+
+ * cppdefault.c (cpp_EXEC_PREFIX): New variable.
+ * cppdefault.h (cpp_PREFIX): Document.
+ (cpp_PREFIX_len): Likewise.
+ (cpp_EXEC_PREFIX): New variable.
+ * Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX.
+ * c-incpath.c (add_standard_paths): Correct logic for relocating
+ paths within prefix.
+
2007-03-12 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md (fixuns_trunc<mode>hi2): Implement from
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index a8792b80146..6d3fe12e0d7 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -3210,6 +3210,7 @@ PREPROCESSOR_DEFINES = \
-DCROSS_INCLUDE_DIR=\"$(CROSS_SYSTEM_HEADER_DIR)\" \
-DTOOL_INCLUDE_DIR=\"$(gcc_tooldir)/include\" \
-DPREFIX=\"$(prefix)\" \
+ -DSTANDARD_EXEC_PREFIX=\"$(libdir)/gcc\" \
@TARGET_SYSTEM_ROOT_DEFINE@
cppdefault.o: cppdefault.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
diff --git a/gcc/c-incpath.c b/gcc/c-incpath.c
index fe863d52b6e..3a9585bd26d 100644
--- a/gcc/c-incpath.c
+++ b/gcc/c-incpath.c
@@ -167,11 +167,26 @@ add_standard_paths (const char *sysroot, const char *iprefix,
else if (!p->add_sysroot && relocated
&& strncmp (p->fname, cpp_PREFIX, cpp_PREFIX_len) == 0)
{
- /* If the compiler is relocated, and this is a configured
- prefix relative path, then we use gcc_exec_prefix instead
- of the configured prefix. */
- str = concat (gcc_exec_prefix, p->fname
- + cpp_PREFIX_len, NULL);
+ static const char *relocated_prefix;
+ /* If this path starts with the configure-time prefix,
+ but the compiler has been relocated, replace it
+ with the run-time prefix. The run-time exec prefix
+ is GCC_EXEC_PREFIX. Compute the path from there back
+ to the toplevel prefix. */
+ if (!relocated_prefix)
+ {
+ char *dummy;
+ /* Make relative prefix expects the first argument
+ to be a program, not a directory. */
+ dummy = concat (gcc_exec_prefix, "dummy", NULL);
+ relocated_prefix
+ = make_relative_prefix (dummy,
+ cpp_EXEC_PREFIX,
+ cpp_PREFIX);
+ }
+ str = concat (relocated_prefix,
+ p->fname + cpp_PREFIX_len,
+ NULL);
str = update_path (str, p->component);
}
else
diff --git a/gcc/cppdefault.c b/gcc/cppdefault.c
index 597988ee332..3e60841980f 100644
--- a/gcc/cppdefault.c
+++ b/gcc/cppdefault.c
@@ -112,6 +112,7 @@ const size_t cpp_GCC_INCLUDE_DIR_len = 0;
/* The configured prefix. */
const char cpp_PREFIX[] = PREFIX;
const size_t cpp_PREFIX_len = sizeof PREFIX - 1;
+const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX;
/* This value is set by cpp_relocated at runtime */
const char *gcc_exec_prefix;
diff --git a/gcc/cppdefault.h b/gcc/cppdefault.h
index 2da6d05f564..398cc857424 100644
--- a/gcc/cppdefault.h
+++ b/gcc/cppdefault.h
@@ -52,8 +52,16 @@ extern const struct default_include cpp_include_defaults[];
extern const char cpp_GCC_INCLUDE_DIR[];
extern const size_t cpp_GCC_INCLUDE_DIR_len;
+/* The configure-time prefix, i.e., the value supplied as the argument
+ to --prefix=. */
extern const char cpp_PREFIX[];
+/* The length of the configure-time prefix. */
extern const size_t cpp_PREFIX_len;
+/* The configure-time execution prefix. This is typically the lib/gcc
+ subdirectory of cpp_PREFIX. */
+extern const char cpp_EXEC_PREFIX[];
+/* The run-time execution prefix. This is typically the lib/gcc
+ subdirectory of the actual installation. */
extern const char *gcc_exec_prefix;
/* Return true if the toolchain is relocated. */