160 lines
4.0 KiB
Plaintext
160 lines
4.0 KiB
Plaintext
dnl
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dnl AC_LIB_RAW1394_FLAGS
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dnl This just unconditionally sets the options. It should offer an option for
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dnl explicitly giving the path to libraw1394 on the configure command line.
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dnl
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AC_DEFUN(AC_LIB_RAW1394_FLAGS, [
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LIBRAW1394_CPPFLAGS=""
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LIBRAW1394_CFLAGS=""
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LIBRAW1394_LIBS="-lraw1394"
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AC_SUBST(LIBRAW1394_CPPFLAGS)
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AC_SUBST(LIBRAW1394_CFLAGS)
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AC_SUBST(LIBRAW1394_LIBS)
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])
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dnl
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dnl AC_LIB_RAW1394_HEADERS([ACTION_IF_FOUND[,ACTION_IF_NOT_FOUND]])
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dnl
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AC_DEFUN(AC_LIB_RAW1394_HEADERS, [
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AC_REQUIRE([AC_LIB_RAW1394_FLAGS])
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ac_libraw1394_save_cppflags=$CPPFLAGS
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CPPFLAGS="$LIBRAW1394_CPPFLAGS $CPPFLAGS"
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ac_libraw1394_headers=no
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AC_CHECK_HEADER(libraw1394/raw1394.h, ac_libraw1394_headers=yes)
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CPPFLAGS=$ac_libraw1394_save_cppflags
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if test $ac_libraw1394_headers = yes ; then
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ifelse([$1], , :, $1)
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else
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ifelse([$2], , :, $2)
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fi
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])
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dnl
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dnl AC_LIB_RAW1394_LIBVERSION(MINIMUMVERSION[,ACTION_IF_FOUND[,ACTION_IF_NOT_FOUND]])
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dnl
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AC_DEFUN(AC_LIB_RAW1394_LIBVERSION, [
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AC_REQUIRE([AC_PROG_CC])
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AC_REQUIRE([AC_LIB_RAW1394_FLAGS])
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ac_libraw1394_save_cppflags=$CPPFLAGS
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ac_libraw1394_save_cflags=$CFLAGS
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ac_libraw1394_save_libs=$LIBS
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CPPFLAGS="$LIBRAW1394_CPPFLAGS $CPPFLAGS"
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CFLAGS="$LIBRAW1394_CFLAGS $CFLAGS"
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LIBS="$LIBRAW1394_LIBS $LIBS"
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ac_libraw1394_versiontest_success=no
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ac_libraw1394_ver_symbol=`echo __libraw1394_version_$1 | sed 's/\./_/g'`
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AC_TRY_LINK([], [{
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extern char $ac_libraw1394_ver_symbol;
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$ac_libraw1394_ver_symbol++;
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}], ac_libraw1394_versiontest_success=yes)
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CPPFLAGS=$ac_libraw1394_save_cppflags
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CFLAGS=$ac_libraw1394_save_cflags
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LIBS=$ac_libraw1394_save_libs
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if test $ac_libraw1394_versiontest_success = yes; then
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ifelse([$2], , :, $2)
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else
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ifelse([$3], , :, $3)
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fi
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])
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dnl
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dnl AC_LIB_RAW1394_RUNTEST(MINIMUMVERSION[,ACTION_IF_FOUND
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dnl [,ACTION_IF_NOT_FOUND[,ACTION_IF_CROSS_COMPILING]]])
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AC_DEFUN(AC_LIB_RAW1394_RUNTEST, [
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ac_libraw1394_save_cppflags=$CPPFLAGS
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ac_libraw1394_save_cflags=$CFLAGS
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ac_libraw1394_save_libs=$LIBS
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CPPFLAGS="$LIBRAW1394_CPPFLAGS $CPPFLAGS"
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CFLAGS="$LIBRAW1394_CFLAGS $CFLAGS"
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LIBS="$LIBRAW1394_LIBS $LIBS"
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dnl This program compares two version strings and returns with code 0 if
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dnl req_ver <= lib_ver, returns 1 otherwise.
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dnl
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dnl "1.23" < "1.23.1" (missing fields assumed zero)
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dnl "1.23pre" <> "1.23" (undefined, do not use text as version)
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dnl "1.21" > "1.3" (no implicit delimiters)
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AC_TRY_RUN([
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#include <stdlib.h>
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#include <libraw1394/raw1394.h>
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int main()
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{
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char *req_ver, *lib_ver;
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unsigned int req_i, lib_i;
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req_ver = "$1";
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lib_ver = raw1394_get_libversion();
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while (1) {
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req_i = strtoul(req_ver, &req_ver, 10);
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lib_i = strtoul(lib_ver, &lib_ver, 10);
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if (req_i > lib_i) exit(1);
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if (req_i < lib_i) exit(0);
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if (*req_ver != '.' || *lib_ver != '.') exit(0);
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req_ver++;
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lib_ver++;
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}
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}
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], ac_libraw1394_run=yes, ac_libraw1394_run=no, ac_libraw1394_run=cross)
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CPPFLAGS=$ac_libraw1394_save_cppflags
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CFLAGS=$ac_libraw1394_save_cflags
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LIBS=$ac_libraw1394_save_libs
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if test $ac_libraw1394_run = yes; then
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ifelse([$2], , :, $2)
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elif test $ac_libraw1394_run = no; then
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ifelse([$3], , :, $3)
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else
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ifelse([$4], ,
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AC_MSG_ERROR([no default for cross compiling in libraw1394 runtest macro]),
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[$4])
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fi
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])
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dnl
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dnl AC_LIB_RAW1394(MINIMUMVERSION[,ACTION_IF_FOUND[,ACTION_IF_NOT_FOUND]])
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dnl
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dnl Versions before 0.9 can't be checked, so this will always fail if the
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dnl installed libraw1394 is older than 0.9 as if the library weren't found.
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dnl
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AC_DEFUN(AC_LIB_RAW1394, [
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AC_LIB_RAW1394_FLAGS
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AC_LIB_RAW1394_HEADERS(ac_libraw1394_found=yes, ac_libraw1394_found=no)
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if test $ac_libraw1394_found = yes ; then
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AC_MSG_CHECKING(for libraw1394 version >= [$1])
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AC_LIB_RAW1394_RUNTEST([$1], , ac_libraw1394_found=no,
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AC_LIB_RAW1394_LIBVERSION([$1], , ac_libraw1394_found=no))
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if test $ac_libraw1394_found = yes ; then
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AC_MSG_RESULT(yes)
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$2
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else
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AC_MSG_RESULT(no)
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$3
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fi
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fi
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])
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