- AC_CHECK_HEADER(jpeglib.h, AC_CHECK_LIB(jpeg, jpeg_read_header, JPEG_LINK="-ljpeg"))
+ dnl can't use AC_CHECK_HEADER as jconfig.h defines things like
+ dnl HAVE_STDLIB_H which are already defined and this provokes
+ dnl a compiler warning which configure considers as an error...
+ AC_MSG_CHECKING(for jpeglib.h)
+ AC_CACHE_VAL(ac_cv_header_jpeglib_h,
+ AC_TRY_COMPILE(
+ [
+ #undef HAVE_STDLIB_H
+ #include <stdio.h>
+ #include <jpeglib.h>
+ ],
+ [
+ ],
+ ac_cv_header_jpeglib_h=yes,
+ ac_cv_header_jpeglib_h=no
+ )
+ )
+ AC_MSG_RESULT($ac_cv_header_jpeglib_h)
+
+ if test "$ac_cv_header_jpeglib_h" = "yes"; then
+ AC_CHECK_LIB(jpeg, jpeg_read_header, JPEG_LINK="-ljpeg")
+ fi
+