append MASON_STDLIB_VERSION to binary if MASON_CXX_PACKAGE == true

respect CXX env var

add script to print c++ stdlib version

include <string> instead of <ciso646> because of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65473

.gitignore

@@ -1 +1,2 @@
-*-*/
+*-*/
+stdlib.o

mason.sh

@@ -38,6 +38,8 @@ case ${MASON_ROOT} in
     *\ * ) mason_error "Directory '${MASON_ROOT} contains spaces."; exit ;;
 esac
 
+export MASON_STDLIB_VERSION="-"`${CXX:-c++} ${MASON_DIR}/stdlib.cpp -o ${MASON_DIR}/stdlib.o && ${MASON_DIR}/stdlib.o`
+
 if [ ${MASON_PLATFORM} = 'osx' ]; then
     export MASON_HOST_ARG="--host=x86_64-apple-darwin"
     export MASON_PLATFORM_VERSION=`xcrun --sdk macosx --show-sdk-version`
@@ -86,7 +88,6 @@ elif [ ${MASON_PLATFORM} = 'ios' ]; then
     export MASON_ISIM_CFLAGS="${MIN_SDK_VERSION_FLAG} -isysroot ${MASON_SDK_PATH} -arch i386 -arch x86_64"
 
 elif [ ${MASON_PLATFORM} = 'linux' ]; then
-
     export MASON_DYNLIB_SUFFIX="so"
 
     # Assume current system is the target platform
@@ -243,7 +244,12 @@ else
     MASON_PLATFORM_ID=${MASON_PLATFORM}-${MASON_PLATFORM_VERSION}
 fi
 MASON_PREFIX=${MASON_ROOT}/${MASON_PLATFORM_ID}/${MASON_NAME}/${MASON_VERSION}
-MASON_BINARIES=${MASON_PLATFORM_ID}/${MASON_NAME}/${MASON_VERSION}.tar.gz
+MASON_BINARIES_PREFIX=${MASON_PLATFORM_ID}/${MASON_NAME}/${MASON_VERSION}
+if [[ ${MASON_CXX_PACKAGE} == true ]]; then
+    MASON_BINARIES=${MASON_BINARIES_PREFIX}${MASON_STDLIB_VERSION}.tar.gz
+else
+    MASON_BINARIES=${MASON_BINARIES_PREFIX}.tar.gz
+fi
 MASON_BINARIES_PATH=${MASON_ROOT}/.binaries/${MASON_BINARIES}
 
 

stdlib.cpp

@@ -0,0 +1,16 @@
+#include <string>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define PRINT(name, version) printf("%s-%d\n", name, version);
+
+int main(int argc, char *argv[]) {
+  #ifdef _LIBCPP_VERSION
+    PRINT("libc++", _LIBCPP_ABI_VERSION)
+  #elif __GLIBCXX__
+    PRINT("libstdc++", __GLIBCXX__)
+  #endif
+
+  exit(EXIT_SUCCESS);
+}