crosstool-ng: patches/gcc/4.4.6/410-libgcc

complibs/cloog: fix linking with libm

In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA] Checking CLooG/ppl
[DEBUG] ==> Executing: 'make' '-j3' '-s' 'check'
[ALL ] Making check in .
[ALL ] config.status: creating include/cloog/cloog-config.h
[ALL ] config.status: include/cloog/cloog-config.h is unchanged
[ALL ] libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
-pipe -o cloog cloog.o -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
/<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
/<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
/<snip>/build/static/lib/libgmp.a -lstdc++
[ALL ] /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL ] /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
it to the linker command line
[ALL ] /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
could not read symbols: Invalid operation
[ALL ] collect2: ld returned 1 exit status
[ERROR] make[2]: *** [cloog] Error 1
[ERROR] make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>

     1 Highly inspired by:

     2   http://landley.net/hg/aboriginal/file/7e0747a665ab/sources/patches/gcc-core-libgcceh.patch

     4 diff -durN gcc-4.4.0.orig/libgcc/Makefile.in gcc-4.4.0/libgcc/Makefile.in

     5 --- gcc-4.4.0.orig/libgcc/Makefile.in	2009-04-10 01:23:07.000000000 +0200

     6 +++ gcc-4.4.0/libgcc/Makefile.in	2011-09-12 17:05:25.121124559 +0200

     7 @@ -754,8 +754,9 @@

     8  libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)

     9  endif

    11 +all: libgcc_eh.a

    12  ifeq ($(enable_shared),yes)

    13 -all: libgcc_eh.a libgcc_s$(SHLIB_EXT)

    14 +all: libgcc_s$(SHLIB_EXT)

    15  ifneq ($(LIBUNWIND),)

    16  all: libunwind$(SHLIB_EXT)

    17  endif

    18 @@ -924,10 +925,6 @@

    19  install-shared:

    20  	$(mkinstalldirs) $(DESTDIR)$(inst_libdir)

    22 -	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/

    23 -	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a

    24 -	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a

    25 -

    26  	$(subst @multilib_dir@,$(MULTIDIR),$(subst \

    27  		@shlib_base_name@,libgcc_s,$(subst \

    28  		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))

    29 @@ -942,6 +939,10 @@

    30  	chmod 644 $(DESTDIR)$(inst_libdir)/libgcov.a

    31  	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcov.a

    33 +	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/

    34 +	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a

    35 +	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a

    36 +

    37  	parts="$(INSTALL_PARTS)";				\

    38  	for file in $$parts; do					\

    39  	  rm -f $(DESTDIR)$(inst_libdir)/$$file;		\

author	"Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
	Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854	a70abdbfa342
permissions	-rw-r--r--