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dnl Process this file with autoconf to produce a configure script
AC_INIT([luaposix], [31], [http://github.com/luaposix/luaposix/issues])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AS_BOX([Configuring AC_PACKAGE_TARNAME AC_PACKAGE_VERSION])
echo
AM_INIT_AUTOMAKE([-Wall subdir-objects])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
dnl Check for programs
AC_PROG_CC
gl_EARLY
AC_PROG_MKDIR_P
AC_PROG_EGREP
AC_PROG_SED
AC_USE_SYSTEM_EXTENSIONS
AC_ARG_ENABLE([gcc-warnings],
[AS_HELP_STRING([--enable-gcc-warnings],
[turn on lots of GCC warnings (for developers)])],
[case $enableval in
yes|no) ;;
*) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
esac
gl_gcc_warnings=$enableval],
[gl_gcc_warnings=no]
)
if test "$gl_gcc_warnings" = yes; then
gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
# Set up the list of undesired warnings.
nw=
nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
nw="$nw -Wundef" # All compiler preprocessors support #if UNDEF
nw="$nw -Wtraditional" # All compilers nowadays support ANSI C
nw="$nw -Wstrict-overflow" # Use a lower level (see below).
nw="$nw -Wconversion" # These warnings usually don't point to mistakes.
nw="$nw -Wsign-conversion" # Likewise.
nw="$nw -Waggregate-return" # We do this on purpose.
nw="$nw -Wtraditional-conversion" # Don't care.
nw="$nw -Wpadded" # Don't care.
nw="$nw -Wc++-compat" # Don't care.
nw="$nw -Woverlength-strings" # Don't care.
nw="$nw -Wmissing-format-attribute" # Don't care.
nw="$nw -Wunreachable-code" # Seems buggy.
nw="$nw -Wunused-macros" # those macros might come in handy later
gl_MANYWARN_ALL_GCC([warnings])
# Enable all GCC warnings not in this list.
gl_MANYWARN_COMPLEMENT([warnings], [$warnings], [$nw])
for w in $warnings; do
gl_WARN_ADD([$w])
done
# Add an extra warning
gl_WARN_ADD([-Wstrict-overflow=1])
# Add some more safety measures
gl_WARN_ADD([-D_FORTIFY_SOURCE=2])
gl_WARN_ADD([-fmudflap])
fi
dnl required by automake 1.12.x, not available in 1.10.x
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
LT_PREREQ([2.2.6])
LT_INIT([disable-static])
module=yes eval shrext=$shrext_cmds
AC_SUBST([objdir])
AC_SUBST([shrext])
AC_SUBST(LIBTOOL_DEPS)
gl_INIT
dnl Check for header files
AC_HEADER_STDC
AC_CHECK_HEADERS([crypt.h sys/statvfs.h])
dnl Search libs
AC_SEARCH_LIBS([crypt], [crypt],
[AC_DEFINE([HAVE_CRYPT], [], [Define this if your system has a crypt() function])])
dnl Check for functions
AC_CHECK_FUNCS([strlcpy statvfs])
dnl Compiler flags for POSIX
dnl Get this from autotools/gnulib
if test Darwin != `uname`; then
# FIXME: Make -lrt conditional on _XOPEN_REALTIME
POSIX_EXTRA_CFLAGS=-D_XOPEN_SOURCE=700
POSIX_EXTRA_LDFLAGS=-lrt
fi
AC_SUBST(POSIX_EXTRA_CFLAGS)
AC_SUBST(POSIX_EXTRA_LDFLAGS)
dnl Curses
AX_WITH_CURSES
if test "$ax_cv_curses" = "yes"; then
WANTEDLIBS=ext/curses/curses_c.la
WANTEDLUA=lib/curses.lua
fi
AC_ARG_VAR(CURSES_LIB, [linker flags for curses library])
AC_SUBST(WANTEDLIBS)
AC_SUBST(WANTEDLUA)
save_LIBS=$LIBS
LIBS="$CURSES_LIB $LIBS"
AC_CHECK_FUNCS([resizeterm])
LIBS=$save_LIBS
dnl Lua 5.1 or 5.2
AX_PROG_LUA(5.1, 5.3)
AX_LUA_HEADERS
AC_PATH_PROG([SPECL], [specl], [:])
dnl Perl
AC_PATH_PROG([PERL], [perl])
if test -z "$PERL"; then
AC_MSG_FAILURE([cannot find perl])
fi
dnl ldoc
AC_PATH_PROG([LDOC], [ldoc], [false])
AM_CONDITIONAL([HAVE_LDOC], [test false != "$LDOC"])
dnl Generate output files
SPECL_MIN=8
SS_CONFIG_TRAVIS([ldoc specl])
AC_CONFIG_HEADER(config.h)
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
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