[dnl
dnl Get the cppflags and libraries from the ginac-config script
dnl
-AC_ARG_WITH(ginac-prefix,[ --with-ginac-prefix=PFX Prefix where GiNaC is installed (optional)],
+AC_ARG_WITH(ginac-prefix, AC_HELP_STRING([--with-ginac-prefix=PFX], [Prefix where GiNaC is installed (optional)]),
ginac_prefix="$withval", ginac_prefix="")
-AC_ARG_WITH(ginac-exec-prefix,[ --with-ginac-exec-prefix=PFX Exec prefix where GiNaC is installed (optional)],
+AC_ARG_WITH(ginac-exec-prefix, AC_HELP_STRING([--with-ginac-exec-prefix=PFX], [Exec prefix where GiNaC is installed (optional)]),
ginac_exec_prefix="$withval", ginac_exec_prefix="")
-AC_ARG_ENABLE(ginactest, [ --disable-ginactest Do not try to compile and run a test GiNaC program],
+AC_ARG_ENABLE(ginactest, AC_HELP_STRING([--disable-ginactest], [Do not try to compile and run a test GiNaC program]),
, enable_ginactest=yes)
if test x$ginac_exec_prefix != x ; then