message: Introduce underlining for error message regions.

[pspp] / configure.ac

diff --git a/configure.ac b/configure.ac
index a9d8d84eeecb324f9fe22c587f4ecadc45650a6a..3aa807cee9da19bc15c71ce95b602fb37d39cd3e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,12 @@ AC_LIBTOOL_WIN32_DLL
 AC_LIBTOOL_DLOPEN
 AC_PROG_LIBTOOL
 AC_HEADER_TIOCGWINSZ
+
+AC_CHECK_SIZEOF([ptrdiff_t])
+binary_width=`expr 8 '*' $ac_cv_sizeof_ptrdiff_t`
+AC_SUBST([binary_width])
+
+
 PKG_PROG_PKG_CONFIG
 m4_pattern_forbid([PKG_CHECK_MODULES])
 PSPP_CHECK_CLICKSEQUENCE
@@ -46,6 +52,14 @@ PSPP_CHECK_MAKEINFO_DOCBOOK_XML
 PSPP_CHECK_DOT
 
 PSPP_ENABLE_WERROR
+PSPP_ENABLE_OPTION([-Wall])
+PSPP_ENABLE_OPTION([-Wextra])
+PSPP_ENABLE_OPTION([-Wwrite-strings])
+PSPP_ENABLE_OPTION([-Wstrict-prototypes])
+PSPP_ENABLE_OPTION([-Wpointer-arith])
+PSPP_ENABLE_OPTION([-Wno-sign-compare])
+PSPP_ENABLE_OPTION([-Wmissing-prototypes])
+PSPP_ENABLE_OPTION([-Wc11-c2x-compat])
 
 AM_CONDITIONAL(cc_is_gcc, test x"$GCC" = x"yes" )
 AM_CONDITIONAL(host_is_w32, [case $host_os in mingw*) true;; *) false;; esac] )
@@ -54,8 +68,6 @@ PSPP_PERL
 PSPP_PYTHON
 AC_CHECK_PROGS([TEX], [tex], [no])
 AC_SUBST([TEX])
-AC_CHECK_PROGS([GWC], [gwc wc], [no])
-AC_SUBST([GWC])
 
 # This suppresses an error in gl/careadlinkat.c that otherwise can't be
 # avoided in GCC 10.x: