diff options
Diffstat (limited to 'Build/source/texk/xdvik/m4/xdvi-c-bitmap-type.m4')
-rw-r--r-- | Build/source/texk/xdvik/m4/xdvi-c-bitmap-type.m4 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Build/source/texk/xdvik/m4/xdvi-c-bitmap-type.m4 b/Build/source/texk/xdvik/m4/xdvi-c-bitmap-type.m4 new file mode 100644 index 00000000000..ae3f871e79a --- /dev/null +++ b/Build/source/texk/xdvik/m4/xdvi-c-bitmap-type.m4 @@ -0,0 +1,31 @@ +dnl ### Determine integer type to use for bitmaps + +AC_DEFUN([XDVI_C_BITMAP_TYPE], +[AC_MSG_CHECKING(for integer type to use in bitmaps) +AC_CACHE_VAL(xdvi_cv_bitmap_type, +[AC_TRY_RUN( +[#include <stdio.h> +main() +{ + FILE *f=fopen("conftestval", "w"); + if (!f) exit(1); + if ((sizeof(unsigned long) == 4 || sizeof(unsigned long) == 2) + && sizeof(unsigned long) != sizeof(unsigned int)) + fprintf(f, "BMTYPE=long BMBYTES=%d\n", sizeof(unsigned long)); + if (sizeof(unsigned int) == 4 || sizeof(unsigned int) == 2) + fprintf(f, "BMTYPE=int BMBYTES=%d\n", sizeof(unsigned int)); + else if (sizeof(unsigned short) == 4 || sizeof(unsigned short) == 2) + fprintf(f, "BMTYPE=short BMBYTES=%d\n", sizeof(unsigned short)); + else fprintf(f, "BMTYPE=char BMBYTES=%d\n", sizeof(unsigned char)); + exit(0); +}], +xdvi_cv_bitmap_type="`cat conftestval`", +AC_MSG_ERROR(could not determine integer type for bitmap))]) +eval "$xdvi_cv_bitmap_type" +AC_DEFINE_UNQUOTED([BMTYPE], [$BMTYPE], + [Define to determine the integer type to be used in bitmaps. + The type used will be "unsigned BMTYPE".]) +AC_DEFINE_UNQUOTED([BMBYTES], [$BMBYTES], [Define to the length (in bytes) of type BMTYPE.]) +AC_MSG_RESULT([unsigned $BMTYPE, size = $BMBYTES])]) + + |