From: Alexei Sheplyakov <varg@theor.jinr.ru>
Date: Sun, 7 Sep 2008 18:53:07 +0000 (+0400)
Subject: configure: run important checks first (and bail out if something is missing).
X-Git-Tag: release_1-5-0~63^2~3
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=commitdiff_plain;h=e677a783b3c986ceb873a580a18f2214ad6de52c;p=ginac.git

configure: run important checks first (and bail out if something is missing).

Don't bother to check for optional stuff if CLN and/or standard C++ headers
are missing.
---

diff --git a/configure.ac b/configure.ac
index 576a72bb..45fd2d64 100644
--- a/configure.ac
+++ b/configure.ac
@@ -78,6 +78,14 @@ AC_LANG([C++])
 dnl Make sure all the necessary standard headers are installed on the system.
 GINAC_STD_CXX_HEADERS
 
+dnl We need to have Bruno Haible's CLN installed.
+dnl (pkg-config must have installed pkg.m4 at a visible place, which provides
+dnl this macro. CLN >= 1.1.6 must have installed cln.pc at a visible place,
+dnl which provides the actual dependency information.)
+PKG_CHECK_MODULES(CLN, cln >= 1.1.6)
+LIBS="$LIBS $CLN_LIBS"
+CPPFLAGS="$CPPFLAGS $CLN_CFLAGS"
+
 dnl Check for data types which are needed by the hash function 
 dnl (golden_ratio_hash).
 AC_CHECK_TYPE(long long)
@@ -97,13 +105,6 @@ AC_CHECK_LIB(dl, dlopen,
 	GINAC_WARNING([libdl not found. GiNaC::compile will be disabled.]))
 AC_SUBST(DL_LIBS)
 
-dnl We need to have Bruno Haible's CLN installed.
-dnl (pkg-config must have installed pkg.m4 at a visible place, which provides
-dnl this macro. CLN >= 1.1.6 must have installed cln.pc at a visible place,
-dnl which provides the actual dependency information.)
-PKG_CHECK_MODULES(CLN, cln >= 1.1.6)
-LIBS="$LIBS $CLN_LIBS"
-CPPFLAGS="$CPPFLAGS $CLN_CFLAGS"
 
 dnl Check for utilities needed by the different kinds of documentation.
 dnl Documentation needs only be built when extending it, so never mind if it