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mirror of https://github.com/phpv8/v8js.git synced 2024-11-08 15:48:40 +00:00
phpv8/config.m4
Stefan Siegl 39062b4248 Test for snapshot support in V8
Looks like we have to test for internal functions unfortunately
since the public V8 snapshot API is available no matter whether
the library really supports it or not.
2016-02-28 17:48:44 +01:00

241 lines
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PHP_ARG_WITH(v8js, for V8 Javascript Engine,
[ --with-v8js Include V8 JavaScript Engine])
if test "$PHP_V8JS" != "no"; then
SEARCH_PATH="/usr/local /usr"
SEARCH_FOR="include/v8.h"
if test -r $PHP_V8JS/$SEARCH_FOR; then
case $host_os in
darwin* )
# MacOS does not support --rpath
;;
* )
LDFLAGS="$LDFLAGS -Wl,--rpath=$PHP_V8JS/$PHP_LIBDIR"
;;
esac
V8_DIR=$PHP_V8JS
else
AC_MSG_CHECKING([for V8 files in default path])
for i in $SEARCH_PATH ; do
if test -r $i/$SEARCH_FOR; then
V8_DIR=$i
AC_MSG_RESULT(found in $i)
fi
done
fi
if test -z "$V8_DIR"; then
AC_MSG_RESULT([not found])
AC_MSG_ERROR([Please reinstall the v8 distribution])
fi
PHP_ADD_INCLUDE($V8_DIR/include)
PHP_ADD_LIBRARY_WITH_PATH(v8, $V8_DIR/$PHP_LIBDIR, V8JS_SHARED_LIBADD)
PHP_SUBST(V8JS_SHARED_LIBADD)
PHP_REQUIRE_CXX()
AC_CACHE_CHECK(for C standard version, ac_cv_v8_cstd, [
ac_cv_v8_cstd="c++11"
old_CPPFLAGS=$CPPFLAGS
AC_LANG_PUSH([C++])
CPPFLAGS="-std="$ac_cv_v8_cstd
AC_TRY_RUN([int main() { return 0; }],[],[ac_cv_v8_cstd="c++0x"],[])
AC_LANG_POP([C++])
CPPFLAGS=$old_CPPFLAGS
]);
AC_CACHE_CHECK(how to allow c++11 narrowing, ac_cv_v8_narrowing, [
ac_cv_v8_narrowing=""
old_CXXFLAGS=$CXXFLAGS
AC_LANG_PUSH([C++])
CXXFLAGS="-std="$ac_cv_v8_cstd
AC_TRY_RUN([int main() {
struct { unsigned int x; } foo = {-1};
(void) foo;
return 0;
}], [ ac_cv_v8_narrowing="" ], [
CXXFLAGS="-Wno-c++11-narrowing -std="$ac_cv_v8_cstd
AC_TRY_RUN([int main() {
struct { unsigned int x; } foo = {-1};
(void) foo;
return 0;
}], [ ac_cv_v8_narrowing="-Wno-c++11-narrowing" ], [
CXXFLAGS="-Wno-narrowing -std="$ac_cv_v8_cstd
AC_TRY_RUN([int main() {
struct { unsigned int x; } foo = {-1};
(void) foo;
return 0;
}], [ ac_cv_v8_narrowing="-Wno-narrowing" ], [
AC_MSG_ERROR([cannot compile with narrowing])
], [])
], [])
], [])
AC_LANG_POP([C++])
CXXFLAGS=$old_CXXFLAGS
]);
old_LIBS=$LIBS
old_LDFLAGS=$LDFLAGS
old_CPPFLAGS=$CPPFLAGS
case $host_os in
darwin* )
# MacOS does not support --rpath
LDFLAGS="-L$V8_DIR/$PHP_LIBDIR"
;;
* )
LDFLAGS="-Wl,--rpath=$V8_DIR/$PHP_LIBDIR -L$V8_DIR/$PHP_LIBDIR"
;;
esac
LIBS=-lv8
CPPFLAGS="-I$V8_DIR/include -std=$ac_cv_v8_cstd"
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CACHE_CHECK(for V8 version, ac_cv_v8_version, [
AC_TRY_RUN([#include <v8.h>
#include <iostream>
#include <fstream>
using namespace std;
int main ()
{
ofstream testfile ("conftestval");
if (testfile.is_open()) {
testfile << v8::V8::GetVersion();
testfile << "\n";
testfile.close();
return 0;
}
return 1;
}], [ac_cv_v8_version=`cat ./conftestval|awk '{print $1}'`], [ac_cv_v8_version=NONE], [ac_cv_v8_version=NONE])
])
if test "$ac_cv_v8_version" != "NONE"; then
ac_IFS=$IFS
IFS=.
set $ac_cv_v8_version
IFS=$ac_IFS
V8_API_VERSION=`expr [$]1 \* 1000000 + [$]2 \* 1000 + [$]3`
if test "$V8_API_VERSION" -lt 3024006 ; then
AC_MSG_ERROR([libv8 must be version 3.24.6 or greater])
fi
AC_DEFINE_UNQUOTED([PHP_V8_API_VERSION], $V8_API_VERSION, [ ])
AC_DEFINE_UNQUOTED([PHP_V8_VERSION], "$ac_cv_v8_version", [ ])
else
AC_MSG_ERROR([could not determine libv8 version])
fi
AC_MSG_CHECKING([for v8::internal::ReadNatives])
AC_TRY_LINK([
namespace v8 {
namespace internal {
void ReadNatives();
}
}], [v8::internal::ReadNatives();], [
AC_MSG_RESULT([found (using snapshots)])
AC_DEFINE([PHP_V8_USE_EXTERNAL_STARTUP_DATA], [1], [Whether V8 requires (and can be provided with custom versions of) external startup data])
SEARCH_PATH="$V8_DIR/lib"
AC_MSG_CHECKING([for natives_blob.bin])
SEARCH_FOR="natives_blob.bin"
for i in $SEARCH_PATH ; do
if test -r $i/$SEARCH_FOR; then
AC_MSG_RESULT([found ($i/$SEARCH_FOR)])
AC_DEFINE_UNQUOTED([PHP_V8_NATIVES_BLOB_PATH], "$i/$SEARCH_FOR", [Full path to natives_blob.bin file])
native_blob_found=1
fi
done
if test -z "$native_blob_found"; then
AC_MSG_RESULT([not found])
AC_MSG_ERROR([Please provide V8 native blob as needed])
fi
AC_MSG_CHECKING([for snapshot_blob.bin])
SEARCH_FOR="snapshot_blob.bin"
for i in $SEARCH_PATH ; do
if test -r $i/$SEARCH_FOR; then
AC_MSG_RESULT([found ($i/$SEARCH_FOR)])
AC_DEFINE_UNQUOTED([PHP_V8_SNAPSHOT_BLOB_PATH], "$i/$SEARCH_FOR", [Full path to snapshot_blob.bin file])
snapshot_blob_found=1
fi
done
if test -z "$snapshot_blob_found"; then
AC_MSG_RESULT([not found])
AC_MSG_ERROR([Please provide V8 snapshot blob as needed])
fi
], [
AC_MSG_RESULT([not found (snapshots disabled)])
])
AC_LANG_RESTORE
LIBS=$old_LIBS
LDFLAGS=$old_LDFLAGS
CPPFLAGS=$old_CPPFLAGS
if test "$V8_API_VERSION" -ge 3029036 ; then
dnl building for v8 3.29.36 or later, which requires us to
dnl initialize and provide a platform; hence we need to
dnl link in libplatform to make our life easier.
PHP_ADD_INCLUDE($V8_DIR)
case $host_os in
darwin* )
static_link_extra="libv8_libplatform.a libv8_libbase.a"
;;
* )
static_link_extra="libv8_libplatform.a"
;;
esac
for static_link_extra_file in $static_link_extra; do
AC_MSG_CHECKING([for $static_link_extra_file])
for i in $PHP_V8JS $SEARCH_PATH ; do
if test -r $i/lib64/$static_link_extra_file; then
static_link_dir=$i/lib64
AC_MSG_RESULT(found in $i)
fi
if test -r $i/lib/$static_link_extra_file; then
static_link_dir=$i/lib
AC_MSG_RESULT(found in $i)
fi
done
if test -z "$static_link_dir"; then
AC_MSG_RESULT([not found])
AC_MSG_ERROR([Please provide $static_link_extra_file next to the libv8.so, see README.md for details])
fi
LDFLAGS="$LDFLAGS $static_link_dir/$static_link_extra_file"
done
fi
PHP_NEW_EXTENSION(v8js, [ \
v8js_array_access.cc \
v8js.cc \
v8js_class.cc \
v8js_commonjs.cc \
v8js_convert.cc \
v8js_exceptions.cc \
v8js_methods.cc \
v8js_object_export.cc \
v8js_timer.cc \
v8js_v8.cc \
v8js_v8object_class.cc \
v8js_variables.cc \
], $ext_shared, , "$ac_cv_v8_narrowing -std="$ac_cv_v8_cstd)
PHP_ADD_MAKEFILE_FRAGMENT
fi