dnl Process this file with autoconf to produce a configure script. -*-m4-*- dnl dnl %CopyrightBegin% dnl dnl Copyright Ericsson AB 2001-2016. All Rights Reserved. dnl dnl Licensed under the Apache License, Version 2.0 (the "License"); dnl you may not use this file except in compliance with the License. dnl You may obtain a copy of the License at dnl dnl http://www.apache.org/licenses/LICENSE-2.0 dnl dnl Unless required by applicable law or agreed to in writing, software dnl distributed under the License is distributed on an "AS IS" BASIS, dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. dnl See the License for the specific language governing permissions and dnl limitations under the License. dnl dnl %CopyrightEnd% dnl dnl define([AC_CACHE_LOAD], )dnl dnl define([AC_CACHE_SAVE], )dnl if test "x$no_recursion" != "xyes" -a "x$OVERRIDE_CONFIG_CACHE" = "x"; then # We do not want to use a common cache! cache_file=/dev/null fi AC_INIT(vsn.mk) if test -z "$ERL_TOP" || test ! -d $ERL_TOP ; then AC_CONFIG_AUX_DIRS(autoconf) else erl_top=${ERL_TOP} AC_CONFIG_AUX_DIRS($erl_top/erts/autoconf) fi if test "X$host" != "Xfree_source" -a "X$host" != "Xwin32"; then AC_CANONICAL_HOST else host_os=win32 fi dnl ---------------------------------------------------------------------- dnl Checks for programs. dnl ---------------------------------------------------------------------- AC_DEFUN(ERL_REENTRANT_FLEX, [flex_compile='$LEX -R -Pconftest -oconftest.c conftest.flex 1>&AC_FD_CC' changequote(253, 273)dnl cat > conftest.flex <<EOF /* * This (reentrant) example code comes from the flex manual */ %option reentrant stack noyywrap %x COMMENT %% "//" yy_push_state( COMMENT, yyscanner); .|\n <COMMENT>\n yy_pop_state( yyscanner ); <COMMENT>[^\n]+ fprintf( yyout, "%s\n", yytext); %% int main ( int argc, char * argv[] ) { yyscan_t scanner; yylex_init ( &scanner ); yylex ( scanner ); yylex_destroy ( scanner ); return 0; } EOF changequote([, ])dnl AC_MSG_CHECKING(for reentrant capable flex) if AC_TRY_EVAL(flex_compile) && test -s conftest.c; then ifelse([$1], , :, [ $1]) AC_MSG_RESULT([yes]) else echo "configure: failed program was:" 1>&AC_FD_CC cat conftest.flex 1>&AC_FD_CC echo "configure: PATH was $PATH" 1>&AC_FD_CC ifelse([$2], , , [ $2 ])dnl AC_MSG_RESULT([no]) fi ]) dnl dnl Shall we attempt to use reentrant flex scanner or not dnl AC_ARG_ENABLE(megaco_reentrant_flex_scanner, [ --enable-megaco-reentrant-flex-scanner enable reentrant megaco flex scanner --disable-megaco-reentrant-flex-scanner disable reentrant megaco flex scanner], if test x${enable_megaco_reentrant_flex_scanner} = xno ; then ENABLE_REENTRANT_MEGACO_FLEX_SCANNER=false else ENABLE_REENTRANT_MEGACO_FLEX_SCANNER=true fi, ENABLE_REENTRANT_MEGACO_FLEX_SCANNER=true) dnl dnl flex is needed by megaco. lex wont do! dnl AC_PROG_LEX if test "$LEX" != flex; then ENABLE_MEGACO_FLEX_SCANNER=false else ENABLE_MEGACO_FLEX_SCANNER=true dnl Check if we can generate a reentrant scanner dnl ENABLE_REENTRANT_MEGACO_FLEX_SCANNER=true if ${ENABLE_REENTRANT_MEGACO_FLEX_SCANNER} = true ; then ERL_REENTRANT_FLEX(ENABLE_REENTRANT_MEGACO_FLEX_SCANNER=true, ENABLE_REENTRANT_MEGACO_FLEX_SCANNER=false) fi fi AC_SUBST(ENABLE_MEGACO_FLEX_SCANNER) AC_SUBST(ENABLE_REENTRANT_MEGACO_FLEX_SCANNER) dnl dnl For increased performance it is possible to disable lineno dnl AC_ARG_ENABLE(megaco_flex_scanner_lineno, [ --enable-megaco-flex-scanner-lineno enable megaco flex scanner lineno --disable-megaco-flex-scanner-lineno disable megaco flex scanner lineno], if test x${enable_megaco_flex_scanner_lineno} = xno ; then ENABLE_MEGACO_FLEX_SCANNER_LINENO=false else ENABLE_MEGACO_FLEX_SCANNER_LINENO=true fi, ENABLE_MEGACO_FLEX_SCANNER_LINENO=true) AC_SUBST(ENABLE_MEGACO_FLEX_SCANNER_LINENO) dnl This is the os flavour, should be unix or win32 if test "X$host" = "Xwin32"; then ERLANG_OSTYPE=win32 else ERLANG_OSTYPE=unix fi AC_SUBST(ERLANG_OSTYPE) dnl Magic test for clearcase. if test -d ../../system; then OTP_EXTRA_FLAGS=-DOTP_RELEASE else OTP_EXTRA_FLAGS= fi AC_SUBST(OTP_EXTRA_FLAGS) if test "x$GCC" = xyes; then # Treat certain GCC warnings as errors LM_TRY_ENABLE_CFLAG([-Werror=return-type], [CFLAGS]) fi dnl ---------------------------------------------------------------------- dnl Enable -fsanitize= flags. dnl ---------------------------------------------------------------------- m4_define(DEFAULT_SANITIZERS, [address,undefined]) AC_ARG_ENABLE( sanitizers, AS_HELP_STRING( [--enable-sanitizers@<:@=comma-separated list of sanitizers@:>@], [Default=DEFAULT_SANITIZERS]), [ case "$enableval" in no) sanitizers= ;; yes) sanitizers="-fsanitize=DEFAULT_SANITIZERS" ;; *) sanitizers="-fsanitize=$enableval" ;; esac CFLAGS="$CFLAGS $sanitizers" LDFLAGS="$LDFLAGS $sanitizers" ]) dnl dnl If ${ERL_TOP}/make/otp_ded.mk.in exists and contains DED_MK_VSN > 0, dnl every thing releted to compiling Dynamic Erlang Drivers can be found dnl in $(ERL_TOP)/make/$(TARGET)/ded.mk at compile time. If not, try to dnl figure these things out. dnl AC_MSG_CHECKING([for usable Dynamic Erlang Driver configuration]) [ ded_mk_in="${ERL_TOP}/make/otp_ded.mk.in" ded_mk_vsn= test -r "$ded_mk_in" && ded_mk_vsn=`sed -n "s/^DED_MK_VSN[ ]*=[ ]*\(.*\)/\1/p" < "$ded_mk_in"` test "$ded_mk_vsn" != "" || ded_mk_vsn=0 ] if test $ded_mk_vsn -gt 0; then HAVE_USABLE_OTP_DED_MK=yes AC_MSG_RESULT([yes]) CC=false AC_SUBST(CC) DED_LD=false AC_SUBST(DED_LD) else dnl --- begin no usable otp_ded.mk.in --- HAVE_USABLE_OTP_DED_MK=no AC_MSG_RESULT([no]) dnl dnl C compiler (related) defs dnl AC_PROG_CC dnl dnl Flags to the C compiler dnl if test "X$host" = "Xwin32"; then DED_CFLAGS="$CFLAGS" else case $host_os in darwin*) CFLAGS="$CFLAGS -fno-common" ;; esac if test "x$GCC" = xyes; then DED_CFLAGS="$CFLAGS -fPIC $DED_CFLAGS" else DED_CFLAGS="$CFLAGS $DED_CFLAGS" fi fi dnl emulator includes needed DED_INCLUDES="-I${ERL_TOP}/erts/emulator/beam -I${ERL_TOP}/erts/include -I${ERL_TOP}/erts/include/$host -I${ERL_TOP}/erts/include/internal -I${ERL_TOP}/erts/include/internal/$host -I${ERL_TOP}/erts/emulator/sys/$ERLANG_OSTYPE" DED_THR_DEFS="-D_THREAD_SAFE -D_REENTRANT" case $host_os in win32) DED_LDFLAGS="-dll" ;; solaris2*|sysv4*) DED_LDFLAGS="-G" ;; aix4*) DED_LDFLAGS="-G -bnoentry -bexpall" ;; freebsd2*) # Non-ELF GNU linker DED_LDFLAGS="-Bshareable" ;; darwin*) # Mach-O linker, a shared lib and a loadable # object file is not the same thing. DED_LDFLAGS="-bundle -flat_namespace -undefined suppress" DED_LD="$CC" ;; *) # assume GNU linker and ELF DED_LDFLAGS="-shared" ;; esac AC_CHECK_PROGS(DED_LD, [$LD ld.sh]) AC_CHECK_TOOL(DED_LD, ld, no_ld) if test "$DED_LD" = no_ld; then AC_MSG_ERROR([ld is required to build the flex scanner!]) fi AC_MSG_CHECKING(for linker flags for loadable drivers) DED_LDFLAGS="$LDFLAGS $DED_LDFLAGS" AC_MSG_RESULT([$DED_LDFLAGS]) fi dnl --- end no usable otp_ded.mk.in --- AC_SUBST(HAVE_USABLE_OTP_DED_MK) AC_SUBST(DED_CFLAGS) AC_SUBST(DED_INCLUDES) AC_SUBST(DED_THR_DEFS) AC_SUBST(DED_LDFLAGS) AC_CHECK_PROG(PERL, perl, perl, no_perl) if test "$PERL" = no_perl; then AC_MSG_ERROR([Perl is required to build the flex scanner!]) fi AC_OUTPUT(examples/meas/Makefile:examples/meas/Makefile.in) AC_OUTPUT(src/flex/$host/Makefile:src/flex/Makefile.in)