universe@0: #!/bin/sh
universe@0: #
universe@0: # toolchain detection
universe@0: #
universe@0: 
universe@0: C_COMPILERS="gcc clang suncc cc"
universe@0: CPP_COMPILERS="g++ clang++ sunCC CC"
universe@0: unset TOOLCHAIN_NAME
universe@0: unset TOOLCHAIN_CC
universe@0: unset TOOLCHAIN_CXX
universe@0: 
universe@0: check_c_compiler()
universe@0: {
universe@0: 	cat > "$TEMP_DIR/test.c" << __EOF__
universe@0: /* test file */
universe@0: #include <stdio.h>
universe@0: int main(int argc, char **argv) {
universe@0: #if defined(__clang__)
universe@0: 	printf("clang\n");
universe@0: #elif defined(__GNUC__)
universe@0: 	printf("gcc\n");
universe@0: #elif defined(__sun)
universe@0: 	printf("suncc\n");
universe@0: #else
universe@0: 	printf("unknown\n");
universe@0: #endif
universe@0: 	return 0;
universe@0: }
universe@0: __EOF__
universe@0: 	rm -f "$TEMP_DIR/checkcc"
universe@0: 	$1 -o "$TEMP_DIR/checkcc" $CFLAGS $LDFLAGS "$TEMP_DIR/test.c" 2> /dev/null
universe@0: }
universe@0: 
universe@0: check_cpp_compiler()
universe@0: {
universe@0: 	cat > "$TEMP_DIR/test.cpp" << __EOF__
universe@0: /* test file */
universe@0: #include <iostream>
universe@0: int main(int argc, char **argv) {
universe@0: #if defined(__clang__)
universe@0: 	std::cout << "clang" << std::endl;
universe@0: #elif defined(__GNUC__)
universe@0: 	std::cout << "gcc" << std::endl;
universe@0: #elif defined(__sun)
universe@0: 	std::cout << "suncc" << std::endl;
universe@0: #else
universe@0: 	std::cout << "cc" << std::endl;
universe@0: #endif
universe@0: 	return 0;
universe@0: }
universe@0: __EOF__
universe@0: 	rm -f "$TEMP_DIR/checkcc"
universe@0: 	$1 -o "$TEMP_DIR/checkcc" $CXXFLAGS $LDFLAGS "$TEMP_DIR/test.cpp" 2> /dev/null
universe@0: }
universe@0: 
universe@0: create_libtest_source()
universe@0: {
universe@0:   # $1: filename
universe@0:   # $2: optional include
universe@0: 	cat > "$TEMP_DIR/$1" << __EOF__
universe@0: /* libtest file */
universe@0: int main(int argc, char **argv) {
universe@0: 	return 0;
universe@0: }
universe@0: __EOF__
universe@0:   if [ -n "$2" ]; then
universe@0:     echo "#include <$2>" >> "$TEMP_DIR/$1"
universe@0:   fi
universe@0: }
universe@0: 
universe@0: check_c_lib()
universe@0: {
universe@0:   # $1: libname
universe@0:   # $2: optional include
universe@0:   if [ -z "$TOOLCHAIN_CC" ]; then
universe@0:     return 1
universe@0:   fi
universe@0:   create_libtest_source "test.c" "$2"
universe@0:   rm -f "$TEMP_DIR/checklib"
universe@0: 	$TOOLCHAIN_CC -o "$TEMP_DIR/checklib" $CFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.c" 2> /dev/null
universe@0: }
universe@0: 
universe@0: check_cpp_lib()
universe@0: {
universe@0:   # $1: libname
universe@0:   # $2: optional include
universe@0:   if [ -z "$TOOLCHAIN_CXX" ]; then
universe@0:     return 1
universe@0:   fi
universe@0: 	create_libtest_source "test.cpp" "$2"
universe@0:   rm -f "$TEMP_DIR/checklib"
universe@0: 	$TOOLCHAIN_CXX -o "$TEMP_DIR/checklib" $CXXFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.cpp" 2> /dev/null
universe@0: }
universe@0: 
universe@0: check_lib()
universe@0: {
universe@0:   # $1: libname
universe@0:   # $2: optional include
universe@0: 	if [ -n "$TOOLCHAIN_CC" ]; then
universe@0: 		check_c_lib "$1" "$2"
universe@0: 	elif  [ -n "$TOOLCHAIN_CXX" ]; then
universe@0: 	  check_cpp_lib "$1" "$2"
universe@0: 	fi
universe@0: }
universe@0: 
universe@0: detect_c_compiler()
universe@0: {
universe@0:   if [ -n "$TOOLCHAIN_CC" ]; then
universe@0:     return 0
universe@0:   fi
universe@0:   printf "detect C compiler... "
universe@0:   if [ -n "$CC" ]; then
universe@0:     if check_c_compiler "$CC"; then
universe@0:       TOOLCHAIN_CC=$CC
universe@0:       TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@0:       echo "$CC"
universe@0:       return 0
universe@0:     else
universe@0:       echo "$CC is not a working C compiler"
universe@0:       return 1
universe@0:     fi
universe@0:   else
universe@0:     for COMP in $C_COMPILERS
universe@0:     do
universe@0:       if check_c_compiler "$COMP"; then
universe@0:         TOOLCHAIN_CC=$COMP
universe@0:         TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@0:         echo "$COMP"
universe@0:         return 0
universe@0:       fi
universe@0:     done
universe@0:     echo "not found"
universe@0:     return 1
universe@0:   fi
universe@0: }
universe@0: 
universe@0: detect_cpp_compiler()
universe@0: {
universe@0:   if [ -n "$TOOLCHAIN_CXX" ]; then
universe@0:     return 0
universe@0:   fi
universe@0:   printf "detect C++ compiler... "
universe@0: 
universe@0:   if [ -n "$CXX" ]; then
universe@0:     if check_cpp_compiler "$CXX"; then
universe@0:       TOOLCHAIN_CXX=$CXX
universe@0:       TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@0:       echo "$CXX"
universe@0:       return 0
universe@0:     else
universe@0:       echo "$CXX is not a working C++ compiler"
universe@0:       return 1
universe@0:     fi
universe@0:   else
universe@0:     for COMP in $CPP_COMPILERS
universe@0:     do
universe@0:       if check_cpp_compiler "$COMP"; then
universe@0:         TOOLCHAIN_CXX=$COMP
universe@0:         TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@0:         echo "$COMP"
universe@0:         return 0
universe@0:       fi
universe@0:     done
universe@0:     echo "${TOOLCHAIN_CXX:-"not found"}"
universe@0:     return 1
universe@0:   fi
universe@0: }
universe@0: 
universe@0: write_toolchain_defaults()
universe@0: {
universe@0:   echo "# toolchain" >> "$1"
universe@0:   if [ -n "$TOOLCHAIN_CC" ]; then
universe@0:     echo "CC = ${TOOLCHAIN_CC}" >> "$1"
universe@0:   fi
universe@0:   if [ -n "$TOOLCHAIN_CXX" ]; then
universe@0:     echo "CXX = ${TOOLCHAIN_CXX}" >> "$1"
universe@0:   fi
universe@0:   echo >> "$1"
universe@0:   if [ -f "make/${TOOLCHAIN_NAME}.mk" ]; then
universe@0:     cat "make/${TOOLCHAIN_NAME}.mk" >> "$1"
universe@0:   elif [ -f "make/cc.mk" ]; then
universe@0:     cat "make/cc.mk" >> "$1"
universe@0:   else
universe@0:     echo "!!! WARNING !!! Default toolchain flags not found. Configuration might be incomplete."
universe@0:   fi
universe@0: }