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Diffstat (limited to 'lib/expat/conftools/expat.m4')
| -rw-r--r-- | lib/expat/conftools/expat.m4 | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/expat/conftools/expat.m4 b/lib/expat/conftools/expat.m4 new file mode 100644 index 000000000..e5d4871c9 --- /dev/null +++ b/lib/expat/conftools/expat.m4 @@ -0,0 +1,43 @@ +dnl Check if --with-expat[=PREFIX] is specified and +dnl Expat >= 1.95.0 is installed in the system. +dnl If yes, substitute EXPAT_CFLAGS, EXPAT_LIBS with regard to +dnl the specified PREFIX and set with_expat to PREFIX, or 'yes' if PREFIX +dnl has not been specified. Also HAVE_LIBEXPAT, HAVE_EXPAT_H are defined. +dnl If --with-expat has not been specified, set with_expat to 'no'. +dnl In addition, an Automake conditional EXPAT_INSTALLED is set accordingly. +dnl This is necessary to adapt a whole lot of packages that have expat +dnl bundled as a static library. +AC_DEFUN(AM_WITH_EXPAT, +[ AC_ARG_WITH(expat, + [ --with-expat=PREFIX Use system Expat library], + , with_expat=no) + + AM_CONDITIONAL(EXPAT_INSTALLED, test $with_expat != no) + + EXPAT_CFLAGS= + EXPAT_LIBS= + if test $with_expat != no; then + if test $with_expat != yes; then + EXPAT_CFLAGS="-I$with_expat/include" + EXPAT_LIBS="-L$with_expat/lib" + fi + AC_CHECK_LIB(expat, XML_ParserCreate, + [ EXPAT_LIBS="$EXPAT_LIBS -lexpat" + expat_found=yes ], + [ expat_found=no ], + "$EXPAT_LIBS") + if test $expat_found = no; then + AC_MSG_ERROR([Could not find the Expat library]) + fi + expat_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $EXPAT_CFLAGS" + AC_CHECK_HEADERS(expat.h, , expat_found=no) + if test $expat_found = no; then + AC_MSG_ERROR([Could not find expat.h]) + fi + CFLAGS="$expat_save_CFLAGS" + fi + + AC_SUBST(EXPAT_CFLAGS) + AC_SUBST(EXPAT_LIBS) +]) |