Re: wfmath

[Martin Schulze <joey@infodrom.org>]

Michael Koch wrote:
> Hi list,
> 
> 
> I have uploaded a new version of a library I maintain, wfmath_0.2.9-3.
> The problem is that the mips/el autobuilders didnt built it. Can 
> someone please sent me a config.log of wfmath ?
> 
> I think I dont need an account on a mips machine, the config.log 
> should be enough. ;-)

jokamies!joey(ttyp1):/tmp/wfmath-0.2.10> make -f debian/rules build
dh_testdir
CC="gcc-3.2" CXX="g++-3.2" CFLAGS="-g -Wall -O2" LDFLAGS="-lstdc++" \
./configure \
        --host=mipsel-linux \
        --build=mipsel-linux \
        --prefix=/usr \
        --mandir=\${prefix}/share/man \
        --infodir=\${prefix}/share/info \

loading cache ./config.cache
checking for a BSD compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... yes
checking for working aclocal-1.4... missing
checking for working autoconf... missing
checking for working automake-1.4... missing
checking for working autoheader... missing
checking for working makeinfo... found
checking for c++... g++-3.2
checking whether the C++ compiler (g++-3.2  -lstdc++) works... yes
checking whether the C++ compiler (g++-3.2  -lstdc++) is a cross-compiler... no
checking whether we are using GNU C++... yes
checking whether g++-3.2 accepts -g... yes
checking for Cygwin environment... no
checking for mingw32 environment... no
checking how to run the C preprocessor... gcc-3.2 -E
checking host system type... mipsel-unknown-linux-gnu
checking build system type... mipsel-unknown-linux-gnu
checking for gcc... gcc-3.2
checking whether the C compiler (gcc-3.2 -g -Wall -O2 -lstdc++) works... no
configure: error: installation or configuration problem: C compiler cannot create executables.
make: *** [config.status] Error 1

The problem is that this fails:

jokamies!joey(ttyp0):/tmp> gcc-3.2 -o conftest -g -Wall -O2  -lstdc++ conftest.c
configure:1516: warning: return type defaults to `int'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `log'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `sqrt'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `cosh'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `cos'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `tanh'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `sin'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `atan2'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `pow'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `sinh'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `log10'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `exp'
/usr/lib/gcc-lib/mipsel-linux/3.2.1/libstdc++.so: undefined reference to `tan'
collect2: ld returned 1 exit status

jokamies!joey(ttyp0):/tmp> cat conftest.c

#line 1514 "configure"
#include "confdefs.h"

main(){return(0);}

Looks like somebody forgot to add -lm to the gcc commandline.  Adding that
indeed fixes the problem.

The following change should fix this.  However, I wonder why it built fine on
other architectures.  If you update your rules file and you don't notice the
package building on mipsel, you'll probably need to notify rmurray@debian.org
to remove wfmath from the mipsel blacklist.  (not sure if it's in, though)

diff -u -Nur --exclude CVS orig/wfmath-0.2.10/debian/rules wfmath-0.2.10/debian/rules
--- orig/wfmath-0.2.10/debian/rules	2002-10-20 19:05:10.000000000 +0200
+++ wfmath-0.2.10/debian/rules	2002-10-20 19:05:59.000000000 +0200
@@ -16,10 +16,12 @@
 CC=gcc
 CXX=g++
 CFLAGS=-g -Wall
+LDFLAGS=-lstdc++
 
 ifneq (,$(findstring mips,$(DEB_BUILD_GNU_TYPE)))
 	CC=gcc-3.2
 	CXX=g++-3.2
+	LDFLAG += -lm
 endif
 ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 	CFLAGS += -O0
@@ -32,7 +34,7 @@
 
 config.status: configure
 	dh_testdir
-	CC="$(CC)" CXX="$(CXX)" CFLAGS="$(CFLAGS)" LDFLAGS="-lstdc++" \
+	CC="$(CC)" CXX="$(CXX)" CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" \
 	./configure \
 		--host=$(DEB_HOST_GNU_TYPE) \
 		--build=$(DEB_BUILD_GNU_TYPE) \


Regards,

	Joey

-- 
Every use of Linux is a proper use of Linux.  -- Jon "Maddog" Hall