:: FIXED :: Converting the if/fi to an AS_IF fixes the problem. Specifically, when I change this code: ------------------------ if test 0 = 1; then echo "---- In conditional block 1 ----" AC_LIBTOOL_WIN32_DLL else echo "---- In conditional block 2 ----" fi ------------------------ to: ============= AS_IF([test 0 = 1], [echo "---- In conditional block 1 ----" AC_LIBTOOL_WIN32_DLL], [echo "---- In conditional block 2 ----"] ) ============= it works. The updated configure.ac is now: ++++++++++++++++++++ AC_PREREQ(2.52) AC_INIT([testing], [2.0], [testing], [testing]) AC_CONFIG_MACRO_DIR([m4]) AM_INIT_AUTOMAKE AC_CONFIG_SRCDIR([build_config_files.sh]) dnl -------------------------------------------------------------------------- AS_IF([test 0 = 1], [echo "---- In conditional block 1 ----" AC_LIBTOOL_WIN32_DLL], [echo "---- In conditional block 2 ----"] ) dnl -------------------------------------------------------------------------- AC_PROG_LIBTOOL AC_CONFIG_FILES([Makefile]) AC_OUTPUT ++++++++++++++++++++ and the output from configure is: checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu ---- In conditional block 2 ---- checking for style of include used by make... GNU checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking dependency style of gcc... none checking for a sed that does not truncate output... /bin/sed checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for fgrep... /bin/grep -F checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B checking the name lister (/usr/bin/nm -B) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 1966080 checking whether the shell understands some XSI constructs... yes checking whether the shell understands "+="... yes checking for /usr/bin/ld option to reload object files... -r checking for objdump... objdump checking how to recognize dependent libraries... pass_all checking for ar... ar checking for strip... strip checking for ranlib... ranlib checking command to parse /usr/bin/nm -B output from gcc object... ok checking how to run the C preprocessor... gcc -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for dlfcn.h... yes checking for objdir... .libs checking if gcc supports -fno-rtti -fno-exceptions... no checking for gcc option to produce PIC... -fPIC -DPIC checking if gcc PIC flag -fPIC -DPIC works... yes checking if gcc static flag -static works... no checking if gcc supports -c -o file.o... yes checking if gcc supports -c -o file.o... (cached) yes checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes checking whether -lc should be explicitly linked in... no checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... yes configure: creating ./config.status config.status: creating Makefile config.status: executing depfiles commands config.status: executing libtool commands """"""""""""""""""""""""""""""""""""""""""""""""" and > ./libtool --features host: x86_64-unknown-linux-gnu enable shared libraries enable static libraries Unfortunately, I now I have 50+ complicated configure.ac files to update... Doug _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
