diff options
author | Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> | 2007-02-24 11:00:05 (GMT) |
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committer | Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> | 2007-02-24 11:00:05 (GMT) |
commit | 1906cf93f86d8d66f45f90380a8d3da25c087ee5 (patch) | |
tree | 90916c99abe1f1ec26709ee420e6c349eda4670a /patches/gcc/4.0.0/fix-fixincl.patch | |
parent | 2609573aede4ce198b3462976725b25eb1637d2e (diff) |
Add the full crosstool-NG sources to the new repository of its own.
You might just say: 'Yeah! crosstool-NG's got its own repo!".
Unfortunately, that's because the previous repo got damaged beyond repair and I had no backup.
That means I'm putting backups in place in the afternoon.
That also means we've lost history... :-(
Diffstat (limited to 'patches/gcc/4.0.0/fix-fixincl.patch')
-rw-r--r-- | patches/gcc/4.0.0/fix-fixincl.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/patches/gcc/4.0.0/fix-fixincl.patch b/patches/gcc/4.0.0/fix-fixincl.patch new file mode 100644 index 0000000..8051f31 --- /dev/null +++ b/patches/gcc/4.0.0/fix-fixincl.patch @@ -0,0 +1,72 @@ +See http://gcc.gnu.org/PR22541 + +From: Dan Kegel + +When building gcc-3.4.3 or gcc-4.0.[01] into a clean $PREFIX (the only two I've tried like this), +the configure script happily copies the glibc include files from include to sys-include; +here's the line from the log file (with $PREFIX instead of the real prefix): + +Copying $PREFIX/i686-unknown-linux-gnu/include to $PREFIX/i686-unknown-linux-gnu/sys-include + +But later, when running fixincludes, it gives the error message + The directory that should contain system headers does not exist: + $PREFIX/lib/gcc/i686-unknown-linux-gnu/3.4.3/../../../../i686-unknown-linux-gnu/sys-include + +Nevertheless, it continues building; the header files it installs in + $PREFIX/lib/gcc/i686-unknown-linux-gnu/3.4.3/include +do not include the boilerplate that would cause it to #include_next the +glibc headers in the system header directory. +Thus the resulting toolchain can't compile the following program: +#include <limits.h> +int x = PATH_MAX; +because its limits.h doesn't include the glibc header. + +That's not nice. I suspect the problem is that gcc/Makefile.in assumes that +it can refer to $PREFIX/i686-unknown-linux-gnu with the path + $PREFIX/lib/../i686-unknown-linux-gnu, but +that fails because the directory $PREFIX/lib doesn't exist during 'make all'; +it is only created later, during 'make install'. (Which makes this problem +confusing, since one only notices the breakage well after 'make install', +at which point the path configure complained about does exist, and has the +right stuff in it.) + +A possible fix is to replace the line in gcc/Makefile.in that says + SYSTEM_HEADER_DIR = @SYSTEM_HEADER_DIR@ +with a version that gets rid of extra ..'s, e.g. + SYSTEM_HEADER_DIR = `echo @SYSTEM_HEADER_DIR@ | sed -e :a -e "s,[^/]*/\.\.\/,,;ta"` +(hey, that's the first time I've ever used a label in a sed script; thanks to the sed faq +for explaining the :a ... ta method of looping to repeat a search-and-replace until it doesn't match.) + +[rediffed against gcc-4.0.0] + +--- gcc-4.0.0/gcc/Makefile.in.orig 2005-04-04 12:45:13.000000000 -0700 ++++ gcc-4.0.0/gcc/Makefile.in 2005-05-20 12:33:43.000000000 -0700 +@@ -378,7 +378,10 @@ + CROSS_SYSTEM_HEADER_DIR = @CROSS_SYSTEM_HEADER_DIR@ + + # autoconf sets SYSTEM_HEADER_DIR to one of the above. +-SYSTEM_HEADER_DIR = @SYSTEM_HEADER_DIR@ ++# Purge it of unneccessary internal relative paths ++# to directories that might not exist yet. ++# The sed idiom for this is to repeat the search-and-replace until it doesn't match, using :a ... ta. ++SYSTEM_HEADER_DIR = `echo @SYSTEM_HEADER_DIR@ | sed -e :a -e "s,[^/]*/\.\.\/,," -e ta` + + # Control whether to run fixproto and fixincludes. + STMP_FIXPROTO = @STMP_FIXPROTO@ +@@ -2838,13 +2841,15 @@ + ../$(build_subdir)/fixincludes/fixincl: ; @ : + + # Build fixed copies of system files. ++# Abort if no system headers available, unless building a crosscompiler. ++# FIXME: abort unless building --without-headers would be more accurate and less ugly + stmp-fixinc: gsyslimits.h macro_list \ + ../$(build_subdir)/fixincludes/fixincl \ + ../$(build_subdir)/fixincludes/fixinc.sh + @if test ! -d ${SYSTEM_HEADER_DIR}; then \ + echo The directory that should contain system headers does not exist: >&2 ; \ + echo " ${SYSTEM_HEADER_DIR}" >&2 ; \ +- if test "x${SYSTEM_HEADER_DIR}" = "x${gcc_tooldir}/sys-include"; \ ++ if test "x${SYSTEM_HEADER_DIR}" = "x`echo "${gcc_tooldir}/sys-include" | sed -e :a -e "s,[^/]*/\.\.\/,," -e ta`"; \ + then sleep 1; else exit 1; fi; \ + fi + rm -rf include; mkdir include |