build: Insist on m4 being installed.

[paraslash.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index bd1b5f5d2f9bf2385fc92cd56f7139f3c0f6acb9..2e4b42ceb064ada1fceda9cfbf88ac5f15685ea8 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -53,7 +53,7 @@ AC_DEFUN([UNSTASH_FLAGS], [
        LIBS="$OLD_LIBS"
 ])
 AC_DEFUN([LIB_SUBST_FLAGS], [
-       if test "$HAVE_[]m4_toupper([$1])" == 'yes'; then
+       if test "$HAVE_[]m4_toupper([$1])" = 'yes'; then
                AC_DEFINE(HAVE_[]m4_toupper([$1]), 1,
                        define to 1 to turn on $1 support)
        else
@@ -65,32 +65,22 @@ AC_DEFUN([LIB_SUBST_FLAGS], [
        AC_SUBST($1_ldflags)
 ])
 
-AC_PATH_PROG(UNAMEPATH, uname, no)
-if test "$UNAMEPATH" = "no"; then
-       AC_MSG_ERROR(unable to determine system type)
-fi
-AC_MSG_CHECKING(os type)
-OSTYPE="`$UNAMEPATH -s`"
-AC_MSG_RESULT("$OSTYPE")
-
-if test "$OSTYPE" = "SunOS"; then
-       # needed on SunOS for socket magic
-       arch_cppflags="-D_XOPEN_SOURCE=500 -D__EXTENSIONS__"
-       AC_SUBST(arch_cppflags)
-fi
-
 AC_C_BIGENDIAN()
 
-AC_PATH_PROG([gengetopt], [gengetopt])
-test -z "$gengetopt" && AC_MSG_ERROR(
+AC_PATH_PROG([GENGETOPT], [gengetopt])
+test -z "$GENGETOPT" && AC_MSG_ERROR(
        [gengetopt is required to build this package])
 
-AC_PATH_PROG([help2man], [help2man])
-test -z "$help2man" && AC_MSG_ERROR(
+AC_PATH_PROG([M4], [m4])
+test -z "$M4" && AC_MSG_ERROR(
+       [The m4 macro processor is required to build this package])
+
+AC_PATH_PROG([HELP2MAN], [help2man])
+test -z "$HELP2MAN" && AC_MSG_ERROR(
        [help2man is required to build this package])
 
-AC_PATH_PROG([install], [install])
-test -z "$install" && AC_MSG_ERROR(
+AC_PATH_PROG([INSTALL], [install])
+test -z "$INSTALL" && AC_MSG_ERROR(
        [The install program is required to build this package])
 
 AC_PROG_CC
@@ -218,7 +208,7 @@ if test ${have_ucred} = yes; then
        AC_DEFINE(HAVE_UCRED, 1, define to 1 you have struct ucred)
 fi
 ########################################################################### gengetopt
-echo 'option "z" z "" flag off' | $gengetopt --file-name conftest-ggo &&
+echo 'option "z" z "" flag off' | $GENGETOPT --file-name conftest-ggo &&
 AC_CHECK_DECL(
        [gengetopt_args_info_description],
        [ggo_descriptions_declared=yes],