Hello David, * David Bruce wrote on Tue, Jun 22, 2010 at 06:37:12AM CEST: > PKG_CHECK_MODULES([SDL_MIXER], > [SDL_mixer], > [], > [AC_CHECK_LIB([SDL_mixer], > [Mix_OpenAudio], > [], > [AC_MSG_ERROR([SDL_mixer not found! > http://www.libsdl.org/projects/SDL_mixer])])]) > > > AC_DEFINE([HAVE_LIBSDL_MIXER],[1],[Define to 1 if you have the > `SDL_mixer` library]) > CFLAGS="$CFLAGS $SDL_MIXER_CFLAGS" > LIBS="$LIBS $SDL_MIXER_LIBS" This looks correctly quoted, and if I stick it between AC_INIT AC_PROG_CC and AC_OUTPUT, there is no warning for me. > Problem is, I get errors on autoreconf -i such as: > > dbruce@emperor:/usr/local/src/git/tuxmath/build$ autoreconf -i .. > configure.ac:116: error: possibly undefined macro: AC_CHECK_LIB > If this token and others are legitimate, please use m4_pattern_allow. > See the Autoconf documentation. > autoreconf: /usr/bin/autoconf failed with exit status: 1 Well, the quoting bug may be in pkg.m4 not in your code. Mine came from pkg-config 0.22-1 as packaged by Debian. Which is yours, do you have a pointer to the exact version? > If I run autoreconf a second time, it succeeds, so perhaps this > "error" is actually a warning, but nevertheless I want to get rid of > it. That's a caching bug in Autoconf, I think. > Also, this approach generates somewhat misleading ./configure output, > as it shows the unsuccessful pkg-config check, followed by the > successful AC_CHECK_LIB. I've tried adding explanatory "echo" > statements but have encountered more quoting errors. Is AC_MSG_NOTICE > better, and if so, how do I group multiple macros within the > "action_if_not_found" of PKG_CHECK_MODULES. I think you should show what you tried, preferably with a short but complete configure.ac file. Generally, you can avoid intertwining multiple 'checking for ...' with their results by moving the second test out of the IF-FAILS argument, setting a variable there (you can use a cache variable for a better recheck experience) and invoking the second test later conditionally only, wrapped in AS_IF. But I'm not sure whether this is your issue. Hope that helps. Cheers, Ralf _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
