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Diffstat (limited to 'lib/megaco/configure.ac')
| -rw-r--r-- | lib/megaco/configure.ac | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/lib/megaco/configure.ac b/lib/megaco/configure.ac new file mode 100644 index 0000000000..8c1762ed2b --- /dev/null +++ b/lib/megaco/configure.ac @@ -0,0 +1,198 @@ +dnl Process this file with autoconf to produce a configure script. -*-m4-*- +dnl +dnl %CopyrightBegin% +dnl +dnl Copyright Ericsson AB 2001-2020. 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 + + +AC_INIT +AC_CONFIG_SRCDIR([vsn.mk]) +AC_PREREQ([2.71]) + +AC_CONFIG_AUX_DIRS(${ERL_TOP}/erts/autoconf) + +if test "$host" = "free_source" -o "$host" = "win32"; then + host_os="$host" +else + AC_CANONICAL_HOST +fi + +dnl ---------------------------------------------------------------------- +dnl Checks for programs. +dnl ---------------------------------------------------------------------- + +AC_PROG_CC + +LM_WINDOWS_ENVIRONMENT + +AC_DEFUN(ERL_REENTRANT_FLEX, +[flex_compile='$LEX -R -Pconftest -oconftest.c conftest.flex 1>&AS_MESSAGE_LOG_FD' +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>&AS_MESSAGE_LOG_FD + cat conftest.flex 1>&AS_MESSAGE_LOG_FD + echo "configure: PATH was $PATH" 1>&AS_MESSAGE_LOG_FD +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([noyywrap]) +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 $sanitizers" +]) + +ERL_DED + +AC_CHECK_PROG(PERL, perl, perl, no_perl) +if test "$PERL" = no_perl; then + AC_MSG_ERROR([Perl is required to build the flex scanner!]) +fi + +AC_CONFIG_FILES([examples/meas/Makefile:examples/meas/Makefile.in]) +AC_OUTPUT +AC_CONFIG_FILES([src/flex/$host/Makefile:src/flex/Makefile.in]) +AC_OUTPUT + |