On 1.7.2016 16:32, JASON TILLEY wrote: > I have been editing my Makefile since the original post, so the linker > is no longer getting ‘-lm -lcsa’. The final lines now look like this: > > /bin/sh ./libtool --tag=CC --mode=link /opt/local/bin/gcc -O2 -m64 > -fPIC -g -Wall -L/opt/local/lib -o csabathy src/csabathy-csa.o > src/csabathy-svd.o src/csabathy-minell.o libcsa.la -lm -L/opt/local/lib > libtool: link: /opt/local/bin/gcc -O2 -m64 -fPIC -g -Wall -o > .libs/csabathy src/csabathy-csa.o src/csabathy-svd.o > src/csabathy-minell.o -L/opt/local/lib ./.libs/libcsa.dylib -lm > Undefined symbols for architecture x86_64: > "_main", referenced from: > implicit entry/start for main executable > ld: symbol(s) not found for architecture x86_64 > collect2: error: ld returned 1 exit status > make: *** [csabathy] Error 1 > > My Makefile.am contains this currently: > > ACLOCAL_AMFLAGS = -I m4 --install > > lib_LTLIBRARIES = libcsa.la > libcsa_la_SOURCES = src/csa.c \ > src/svd.c \ > src/minell.c > libcsa_la_LIBADD = -lm
You should not need this done this directly. Use |AC_CHECK_LIB()| or similar macro in |configure.ac| to detect if you need it. > > include_HEADERS = src/csa.h src/svd.h src/minell.h src/nan.h > > bin_PROGRAMS = csabathy > csabathy_SOURCES = src/csa.c \ > src/csa.h \ > src/svd.c \ > src/svd.h \ > src/minell.c \ > src/minell.h \ > src/nan.h You are using the same sources as the |libcsa.la| library but you are actually linking to the library for the executable. This does not make much sense. Also, remove the |.h| files from the list. > csabathy_CFLAGS = $(AM_CFLAGS) > csabathy_LDADD = libcsa.la -lm |-lm| again. > csabathy_DEPENDENCIES = src/csa.lo \ > src/svd.lo \ > src/minell.lo Why do you need this? I do not think it is necessary. The appropriate objects are linked in through the |libcsa.la| library. > > EXTRA_DIST = /src/m4/NOTES This should probably not be an absolute path. > > Thanks for the help. > > > >> On Jun 30, 2016, at 11:57 PM, Václav Haisman <vhais...@gmail.com >> <mailto:vhais...@gmail.com>> wrote: >> >> On 30 June 2016 at 03:03, JASON TILLEY <jdtil...@aol.com >> <mailto:jdtil...@aol.com>> wrote: >>> I am trying to create a Makefile.am for a package on github in order >>> to make it more friendly to packaging >>> (https://github.com/sakov/csa-c). I am having linking problems on my >>> Mac. I’m sure its my complete lack of understanding of Automake. My >>> make command executes the following: >>> >>> depbase=`echo src/csa.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\ >>> /bin/sh ./libtool --tag=CC --mode=compile gcc >>> -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT src/csa.lo -MD -MP -MF >>> $depbase.Tpo -c -o src/csa.lo src/csa.c &&\ >>> mv -f $depbase.Tpo $depbase.Plo >>> libtool: compile: gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT >>> src/csa.lo -MD -MP -MF src/.deps/csa.Tpo -c src/csa.c -fno-common >>> -DPIC -o src/.libs/csa.o >>> libtool: compile: gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT >>> src/csa.lo -MD -MP -MF src/.deps/csa.Tpo -c src/csa.c -o src/csa.o >>> >/dev/null 2>&1 >>> depbase=`echo src/svd.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\ >>> /bin/sh ./libtool --tag=CC --mode=compile gcc >>> -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT src/svd.lo -MD -MP -MF >>> $depbase.Tpo -c -o src/svd.lo src/svd.c &&\ >>> mv -f $depbase.Tpo $depbase.Plo >>> libtool: compile: gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT >>> src/svd.lo -MD -MP -MF src/.deps/svd.Tpo -c src/svd.c -fno-common >>> -DPIC -o src/.libs/svd.o >>> libtool: compile: gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT >>> src/svd.lo -MD -MP -MF src/.deps/svd.Tpo -c src/svd.c -o src/svd.o >>> >/dev/null 2>&1 >>> depbase=`echo src/minell.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\ >>> /bin/sh ./libtool --tag=CC --mode=compile gcc >>> -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT src/minell.lo -MD -MP -MF >>> $depbase.Tpo -c -o src/minell.lo src/minell.c &&\ >>> mv -f $depbase.Tpo $depbase.Plo >>> libtool: compile: gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT >>> src/minell.lo -MD -MP -MF src/.deps/minell.Tpo -c src/minell.c >>> -fno-common -DPIC -o src/.libs/minell.o >>> libtool: compile: gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT >>> src/minell.lo -MD -MP -MF src/.deps/minell.Tpo -c src/minell.c -o >>> src/minell.o >/dev/null 2>&1 >>> /bin/sh ./libtool --tag=CC --mode=link gcc -g -O2 -o libcsa.la >>> -rpath /usr/local/lib src/csa.lo src/svd.lo src/minell.lo >>> libtool: link: gcc -dynamiclib -Wl,-undefined -Wl,dynamic_lookup -o >>> .libs/libcsa.0.dylib src/.libs/csa.o src/.libs/svd.o >>> src/.libs/minell.o -g -O2 -install_name >>> /usr/local/lib/libcsa.0.dylib -compatibility_version 1 >>> -current_version 1.0 -Wl,-single_module >>> libtool: link: (cd ".libs" && rm -f "libcsa.dylib" && ln -s >>> "libcsa.0.dylib" "libcsa.dylib") >>> libtool: link: ar cru .libs/libcsa.a src/csa.o src/svd.o src/minell.o >>> libtool: link: ranlib .libs/libcsa.a >>> libtool: link: ( cd ".libs" && rm -f "libcsa.la" && ln -s >>> "../libcsa.la" "libcsa.la" ) >>> gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT src/csabathy-csa.o >>> -MD -MP -MF src/.deps/csabathy-csa.Tpo -c -o src/csabathy-csa.o >>> `test -f 'src/csa.c' || echo './'`src/csa.c >>> mv -f src/.deps/csabathy-csa.Tpo src/.deps/csabathy-csa.Po >>> gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT src/csabathy-svd.o >>> -MD -MP -MF src/.deps/csabathy-svd.Tpo -c -o src/csabathy-svd.o >>> `test -f 'src/svd.c' || echo './'`src/svd.c >>> mv -f src/.deps/csabathy-svd.Tpo src/.deps/csabathy-svd.Po >>> gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT src/csabathy-minell.o >>> -MD -MP -MF src/.deps/csabathy-minell.Tpo -c -o >>> src/csabathy-minell.o `test -f 'src/minell.c' || echo './'`src/minell.c >>> mv -f src/.deps/csabathy-minell.Tpo src/.deps/csabathy-minell.Po >>> /bin/sh ./libtool --tag=CC --mode=link gcc -g -O2 '-lm -lcsa' >>> -o csabathy src/csabathy-csa.o src/csabathy-svd.o >>> src/csabathy-minell.o libcsa.la >>> libtool: link: gcc -g -O2 -o .libs/csabathy src/csabathy-csa.o >>> src/csabathy-svd.o src/csabathy-minell.o -lm >>> /Users/username/Downloads/csa-c-master/.libs/libcsa.dylib >>> ./.libs/libcsa.dylib >>> Undefined symbols for architecture x86_64: >>> "_main", referenced from: >>> implicit entry/start for main executable >>> ld: symbol(s) not found for architecture x86_64 >>> collect2: error: ld returned 1 exit status >>> make: *** [csabathy] Error 1 >>> >>> Does anyone know what this error means? Thanks. >> >> Where is the Makefile.am? We need to see that to be able to diagnose >> your issue. >> >> At least the '-lm -lcsa' argument on the linking command looks fishy. >> >> -- >> VH > -- VH
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