./configure now gives more information/warnings about missing utilities.

[ginac.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 602a844847ef6762644c86d38a7689af54c68a93..fa8ab0e1542778400c6595d164ced5a5771a25e5 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -69,15 +69,14 @@ LT_RELEASE="1.5"
 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++])
@@ -104,6 +103,10 @@ 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
@@ -117,14 +120,23 @@ 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([
@@ -148,5 +160,6 @@ 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