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| author | Mark Hatle <mark.hatle@windriver.com> | 2013-05-31 15:23:10 +0000 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2013-06-04 15:53:44 +0100 |
| commit | 1f40202ce3c1282674b6cea39ef709972275f201 (patch) | |
| tree | f92fe5cd048c1556ffdfed698b41c9f4af128f8c | |
| parent | da5b23e45c7e4dea2f3802ff5af5c81b08aba201 (diff) | |
| download | openembedded-core-1f40202ce3c1282674b6cea39ef709972275f201.tar.gz openembedded-core-1f40202ce3c1282674b6cea39ef709972275f201.tar.bz2 openembedded-core-1f40202ce3c1282674b6cea39ef709972275f201.zip | |
gcc: Workaround for compiler flag mismatch
When cross compiling the target compiler, both the cross-compiler
and the host compiler are used. However, the -W options used were
discovered from the cross-compiler and may be incompatible with the
host compiler.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.8.inc | 1 | ||||
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.8/gcc-4.8-build-args.patch | 51 |
2 files changed, 52 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.8.inc b/meta/recipes-devtools/gcc/gcc-4.8.inc index a9786da97e..80bd02ccf6 100644 --- a/meta/recipes-devtools/gcc/gcc-4.8.inc +++ b/meta/recipes-devtools/gcc/gcc-4.8.inc @@ -66,6 +66,7 @@ SRC_URI = "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.bz2 \ file://0034-Use-the-multilib-config-files-from-B-instead-of-usin.patch \ file://0035-wcast-qual-PR-55383.patch \ file://gcc-4.8-PR56797.patch \ + file://gcc-4.8-build-args.patch \ " SRC_URI[md5sum] = "e6040024eb9e761c3bea348d1fa5abb0" SRC_URI[sha256sum] = "b037fe5132b71ecad2ea7141ec92292b5d32427bf90fd90cde432b1d5abacc2c" diff --git a/meta/recipes-devtools/gcc/gcc-4.8/gcc-4.8-build-args.patch b/meta/recipes-devtools/gcc/gcc-4.8/gcc-4.8-build-args.patch new file mode 100644 index 0000000000..95f39bb23d --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.8/gcc-4.8-build-args.patch @@ -0,0 +1,51 @@ +When cross compiling a target gcc, target flags may be used on the host + +Configure identifies a number of warning flags (WARN_CFLAGS and +WARN_CXXFLAGS) from the $CC value. The cross compiler may be different +from the host compiler and may not support the same set of flags. This +leads to problems such as: + +cc1plus: error: unrecognized command line option "-Wno-narrowing" +cc1plus: error: unrecognized command line option "-Wno-overlength-strings" + +Work around this problem by removing the warning flags from the +BUILD_*FLAGS values. + +Upstream-Status: Pending + +Signed-off-by: Mark Hatle <mark.hatle@windriver.com> + +diff -ur gcc-4.8.0.orig/gcc/configure.ac gcc-4.8.0/gcc/configure.ac +--- gcc-4.8.0.orig/gcc/configure.ac 2013-05-29 14:44:24.960853593 -0500 ++++ gcc-4.8.0/gcc/configure.ac 2013-05-31 01:34:09.518775962 -0500 +@@ -1892,8 +1892,8 @@ + # These are the normal (build=host) settings: + CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) + CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD) +-BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) +-BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS) ++BUILD_CFLAGS='$(ALL_BUILD_CFLAGS)' AC_SUBST(BUILD_CFLAGS) ++BUILD_CXXFLAGS='$(ALL_BUILD_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS) + BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) + STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) + +diff -ur gcc-4.8.0.orig/gcc/Makefile.in gcc-4.8.0/gcc/Makefile.in +--- gcc-4.8.0.orig/gcc/Makefile.in 2013-05-29 14:44:24.369853593 -0500 ++++ gcc-4.8.0/gcc/Makefile.in 2013-05-31 01:34:30.360776427 -0500 +@@ -989,10 +989,16 @@ + ALL_CFLAGS = $(T_CFLAGS) $(CFLAGS-$@) \ + $(CFLAGS) $(INTERNAL_CFLAGS) $(COVERAGE_FLAGS) $(WARN_CFLAGS) @DEFS@ + ++ALL_BUILD_CFLAGS = $(T_CFLAGS) $(CFLAGS-$@) \ ++ $(CFLAGS) $(INTERNAL_CFLAGS) @DEFS@ ++ + # The C++ version. + ALL_CXXFLAGS = $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS) $(INTERNAL_CFLAGS) \ + $(COVERAGE_FLAGS) $(NOEXCEPTION_FLAGS) $(WARN_CXXFLAGS) @DEFS@ + ++ALL_BUILD_CXXFLAGS = $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS) $(INTERNAL_CFLAGS) \ ++ $(NOEXCEPTION_FLAGS) @DEFS@ ++ + # Likewise. Put INCLUDES at the beginning: this way, if some autoconf macro + # puts -I options in CPPFLAGS, our include files in the srcdir will always + # win against random include files in /usr/include. |