[build] include config.h conditionally to not break non-autotools build.

[ginac.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index ea664ee108d93e23cc5fdfe2321078473372b2aa..7ca6c3bb3ee736d5de1aa7a8407702b20565956d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 dnl GiNaC version number
 m4_define([ginac_major_version], [1])
 m4_define([ginac_minor_version], [6])
-m4_define([ginac_micro_version], [0])
+m4_define([ginac_micro_version], [2])
 m4_define([ginac_version], [ginac_major_version.ginac_minor_version.ginac_micro_version])
 m4_define([ginac_release], [ginac_major_version.ginac_minor_version])
 
@@ -24,9 +24,9 @@ dnl systems, the numbering is consecutive. It only guarantees that it is
 dnl increasing. This doesn't matter, though: there is not incurred cost
 dnl for numbers that are omitted, except for shrinking the available space
 dnl of leftover numbers. Not something we need to worry about yet. ;-)
-m4_define([ginac_lt_current], [2])
+m4_define([ginac_lt_current], [3])
 m4_define([ginac_lt_revision], [0])
-m4_define([ginac_lt_age], [0])
+m4_define([ginac_lt_age], [1])
 
 AC_INIT([GiNaC], ginac_version, [ginac-list@ginac.de], [ginac], [http://www.ginac.de/])
 AC_PREREQ(2.59)
@@ -71,6 +71,10 @@ AM_PROG_LIBTOOL
 AC_PROG_LEX
 AC_PROG_YACC
 AC_PATH_PROG(YACCEXE, $YACC, "")
+AS_IF([test "x$LEX" = "x:" -a ! -f $srcdir/ginsh/ginsh_lexer.cc],
+      [GINAC_WARNING([ginsh will not compile, because lex/flex is missing])])
+AS_IF([test -z "$YACCEXE" -a ! -f $srcdir/ginsh/ginsh_parser.h],
+      [GINAC_WARNING([ginsh will not compile, because yacc/bison is missing])])
 
 dnl Switch to C++ language mode for the following libraries and headers.
 AC_LANG([C++])
@@ -80,7 +84,7 @@ GINAC_STD_CXX_HEADERS
 
 dnl We need to have CLN installed.
 PKG_CHECK_MODULES(CLN, cln >= 1.2.2)
-AC_LIB_LINKFLAGS_FROM_LIBS([CLN_RPATH], [$CLN_LIBS], [1])
+AC_LIB_LINKFLAGS_FROM_LIBS([CLN_RPATH], [$CLN_LIBS])
 LIBS="$LIBS $CLN_LIBS $CLN_RPATH"
 CPPFLAGS="$CPPFLAGS $CLN_CFLAGS"
 dnl Include proper rpath into pkg-config meta data, so
@@ -97,6 +101,10 @@ dnl Check for stuff needed for building the GiNaC interactive shell (ginsh).
 AC_CHECK_HEADERS(unistd.h)
 GINAC_HAVE_RUSAGE
 GINAC_READLINE
+dnl Python is necessary for building function.{cpp,h}
+AC_PATH_PROG(PYTHON, python, "")
+AS_IF([test -z "$PYTHON" -a ! -f "$srcdir/ginac/function.cpp"],
+      [AC_MSG_ERROR([GiNaC will not compile because Python is missing])])
 
 dnl Check for dl library (needed for GiNaC::compile).
 GINAC_EXCOMPILER
@@ -115,10 +123,6 @@ AC_PATH_PROG(DVIPS, dvips, "")
 AM_CONDITIONAL(CONFIG_TEX, [test ! \( -z "$LATEX" -o -z $"PDFLATEX" -o -z "$MAKEINDEX" -o -z "$DVIPS" \)])
 AC_PATH_PROG(FIG2DEV, fig2dev, "")
 AM_CONDITIONAL(CONFIG_FIG2DEV, [test ! -z "$FIG2DEV"])
-AS_IF([test "x$LEX" = "x:" -a ! -f $srcdir/ginsh/ginsh_lexer.cc],
-      [GINAC_WARNING([ginsh will not compile, because lex/flex is missing])])
-AS_IF([test -z "$YACCEXE" -a ! -f $srcdir/ginsh/ginsh_parser.h],
-      [GINAC_WARNING([ginsh will not compile, because yacc/bison is missing])])
 AS_IF([test -z "$FIG2DEV" -o -z "$MAKEINFO"],
          [GINAC_WARNING([Documentation may not build, because fig2dev/texinfo is missing.])])
 AS_IF([test -z "$DOXYGEN"],