crosstool-ng: patches/duma/2_5_1/100-cross-compile.patch@a70abdbfa342

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 diff -dur duma_2_5_1/Makefile duma_2_5_1.orig/Makefile

     2 --- duma_2_5_1/Makefile	2006-06-18 06:02:13.000000000 +0200

     3 +++ duma_2_5_1.orig/Makefile	2007-07-11 17:49:43.000000000 +0200

     4 @@ -98,10 +98,6 @@

     5    LIBS=-lpthread

     6  endif

8 -

     9 -CC=gcc

    10 -CXX=g++

    11 -AR=ar

    12  INSTALL=install

    14  ############################################################

    15 @@ -169,7 +165,7 @@

    17  createconf: createconf.o

    18  	- rm -f createconf

    19 -	$(CC) $(CFLAGS) $(DUMA_OPTIONS) createconf.o -o createconf

    20 +	$(HOSTCC) $(HOSTCFLAGS) $(DUMA_OPTIONS) createconf.o -o createconf

    22  tstheap: libduma.a tstheap.o

    23  	- rm -f tstheap

    24 @@ -211,7 +207,7 @@

    25  # define rules how to build objects for createconf

    26  #

    27  createconf.o:

    28 -	$(CC) $(CFLAGS) $(DUMA_OPTIONS) -c createconf.c -o $@

    29 +	$(HOSTCC) $(HOSTCFLAGS) $(DUMA_OPTIONS) -c createconf.c -o $@

    32  #

author	"Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
	Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854	a70abdbfa342
parent 236	42650dc4e95e
permissions	-rw-r--r--