Improve messages.

diff --git a/ChangeLog b/ChangeLog
index e6d978162a9891d376c8125009d0e71cc849d80e..36b731563a8ddf2995bf9495826086b0648154cb 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Oct 20 18:19:58 2005  Ben Pfaff  <blp@gnu.org>
+
+       * configure.ac: Improve error messages.  Thanks to Jaap-Andre de
+       Hoop <j.dehoop@data-assist.nl>.
+
 Sun Sep 25 16:11:09 2005  Ben Pfaff  <blp@gnu.org>
 
        * Makefile.am: Handles `examples' as a subdirectory instead of a

diff --git a/configure.ac b/configure.ac
index ca647eb06661a11c9c00c4d40f5c6fe3dd4c8854..3a1405fce377b7dd4b5e264703f2c3fa29a1be94 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -36,7 +36,7 @@ AC_ARG_WITH(libplot, [  --without-libplot         don't compile in support of ch
 
 if test x"$with_libplot" != x"no" ; then 
        AC_CHECK_LIB(plot, pl_newpl_r,,
-         AC_MSG_ERROR([You must install libplot (or use --without-libplot)])
+         AC_MSG_ERROR([You must install libplot development libraries (or use --without-libplot)])
        )
 fi
 AM_CONDITIONAL(WITHCHARTS, test x"$with_libplot" != x"no")
@@ -56,9 +56,9 @@ int main (void)
 using Solaris.  You can probably fix the problem with
 `--disable-largefile' or `CFLAGS=-ansi'.])])
 
-AC_CHECK_LIB(gslcblas,main,,AC_MSG_ERROR([You must install libgslcblas]))
+AC_CHECK_LIB(gslcblas,main,,AC_MSG_ERROR([You must install libgslcblas development libraries]))
 AC_CHECK_LIB(gsl, gsl_cdf_chisq_Q,,
-  AC_MSG_ERROR([You must install libgsl version 1.4 or later]))
+  AC_MSG_ERROR([You must install development libraries for libgsl version 1.4 or later]))
 
 AC_ARG_WITH(ncurses,
 [  --without-ncurses         don't compile in ncurses command line editing])