Fix a typo in the GCD testcase.

[ginac.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 21795f4cad9e22779a4a61e536fe3d65787cbe9f..19c1c5066c807a9ef7cbd0907d6bf699f7d6dcb5 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -12,11 +12,12 @@ dnl version number. In particular, library version is OS dependent.
 dnl
 dnl When making releases, do
 dnl 1. Increment ginac_lt_revision
-dnl 2. If any interfaces have been added since the last release, increment
-dnl    ginac_lt_current and set ginac_lt_revision to 0.
-dnl 3. If any interfaces have been changed or removed since the last release,
-dnl    make sure you increment ginac_minor_version above and reset both
-dnl    ginac_lt_current and ginac_lt_revision to 0.
+dnl 2. If any interfaces have been added, removed, or changed since the last
+dnl    release, increment ginac_lt_current and set ginac_lt_revision to 0.
+dnl 3. If any interfaces have been added since the last release, increment
+dnl    ginac_lt_age.
+dnl 4. If any interfaces have been removed since the last release, set 
+dnl    ginac_lt_age to 0.
 dnl
 dnl Please note: the libtool naming scheme cannot guarantee that on all
 dnl systems, the numbering is consecutive. It only guarantees that it is
@@ -25,6 +26,7 @@ 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_revision], [0])
+m4_define([ginac_lt_age], [2])
 
 AC_INIT([GiNaC], ginac_version, [ginac-list@ginac.de], [ginac], [http://www.ginac.de/])
 AC_PREREQ(2.59)
@@ -57,24 +59,18 @@ AC_SUBST(ARCHIVE_AGE)
 AC_DEFINE_UNQUOTED(ARCHIVE_VERSION, $ARCHIVE_VERSION, [Current GiNaC archive file version number])
 AC_DEFINE_UNQUOTED(ARCHIVE_AGE, $ARCHIVE_AGE, [GiNaC archive file version age])
 
-dnl libtool versioning (We don't use libtool's age numbering since we promise
-dnl to keep the binary interface compatible if only ginac_micro_version changes.
-dnl In effect, age==current.)
-LT_VERSION_INFO="ginac_lt_current:ginac_lt_revision:ginac_lt_current"
-LT_RELEASE="ginac_release"
-
+dnl libtool versioning
+LT_VERSION_INFO="ginac_lt_current:ginac_lt_revision:ginac_lt_age"
 AC_SUBST(LT_VERSION_INFO)
-AC_SUBST(LT_RELEASE)
-
 
 dnl Check for the compiler and all the utilities needed for the build.
 AC_PROG_CXX
 AC_PROG_CXXCPP
 AC_PROG_INSTALL
 AM_PROG_LIBTOOL
-AM_PROG_LEX
+AC_PROG_LEX
 AC_PROG_YACC
-
+AC_PATH_PROG(YACCEXE, $YACC, "")
 
 dnl Switch to C++ language mode for the following libraries and headers.
 AC_LANG([C++])
@@ -101,6 +97,10 @@ dnl Check for stuff needed for building the GiNaC interactive shell (ginsh).
 AC_CHECK_HEADERS(unistd.h)
 GINAC_HAVE_RUSAGE
 GINAC_READLINE
+AC_CHECK_FILE([ginsh/ginsh_parser.h], [],
+                         [AS_IF([test -z "$YACCEXE"], [GINAC_WARNING([ginsh will not compile, because yacc/bison is missing.])])])
+AC_CHECK_FILE([ginsh/ginsh_lexer.cc], [],
+                         [AS_IF([test x"$LEX" == x":"], [GINAC_WARNING([ginsh will not compile, because lex/flex is missing.])])])
 
 dnl Check for dl library (needed for GiNaC::compile).
 GINAC_EXCOMPILER
@@ -114,14 +114,23 @@ AM_CONDITIONAL(CONFIG_DOXYGEN, [test ! -z "$DOXYGEN"])
 AC_PATH_PROG(LATEX, latex, "")
 AC_PATH_PROG(PDFLATEX, pdflatex, "")
 AC_PATH_PROG(MAKEINDEX, makeindex, "")
+AC_PATH_PROG(MAKEINFO, makeinfo, "")
 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 "$FIG2DEV"])
-
+AS_IF([test -z "$FIG2DEV" -o -z "$MAKEINFO"],
+         [GINAC_WARNING([Documentation may not build, because fig2dev/texinfo is missing.])])
+AS_IF([test -z "$DOXYGEN"],
+         [GINAC_WARNING([Reference manual will not build, because doxygen is missing.])])
+AS_IF([test -z "$LATEX" -o -z "$PDFLATEX" -o -z "$DVIPS"],
+         [GINAC_WARNING([Some documentation formats may not build, because latex/pdflatex/dvips is missing.])])
+          
 dnl generate boilerplate code for the (new) parser.
 dnl Only developers need this tool.
 AC_PATH_PROG(AUTOGEN, autogen, "")
+AC_CHECK_FILE([ginac/parser/builtin_fcns.cpp], [],
+                         [AS_IF([test -z "$AUTOGEN"], [GINAC_ERROR([Source will not compile, because autogen is missing.])])])
 
 dnl Output makefiles etc.
 AC_CONFIG_FILES([
@@ -145,5 +154,6 @@ doc/reference/DoxyfilePDF
 doc/reference/Doxyfooter
 ])
 AC_OUTPUT
+
 dnl Display a final warning if there has been a GINAC_ERROR or a GINAC_WARNING
 GINAC_CHECK_ERRORS