Fix build requirements by correctly noting that Python is required.

[pspp] / configure.ac

diff --git a/configure.ac b/configure.ac
index 28f70cfacab63aa96e60434d1f7a51678e319b10..c1bc5d78cb44aaeb00cde464c0695b6fe59ef7cf 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -52,16 +52,22 @@ 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] )
 
 PSPP_PERL
-PSPP_PYTHON
+PSPP_PYTHON3
 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: