universe@72: #!/bin/sh
universe@72: #
universe@72: # toolchain detection
universe@72: #
universe@72: 
universe@72: C_COMPILERS="gcc clang suncc cc"
universe@72: CPP_COMPILERS="g++ clang++ sunCC CC"
universe@72: unset TOOLCHAIN_NAME
universe@72: unset TOOLCHAIN_CC
universe@72: unset TOOLCHAIN_CXX
universe@72: 
universe@72: check_c_compiler()
universe@72: {
universe@72: 	cat > "$TEMP_DIR/test.c" << __EOF__
universe@72: /* test file */
universe@72: #include <stdio.h>
universe@72: int main(int argc, char **argv) {
universe@72: #if defined(__clang__)
universe@72: 	printf("clang\n");
universe@72: #elif defined(__GNUC__)
universe@72: 	printf("gcc\n");
universe@72: #elif defined(__sun)
universe@72: 	printf("suncc\n");
universe@72: #else
universe@72: 	printf("unknown\n");
universe@72: #endif
universe@72: 	return 0;
universe@72: }
universe@72: __EOF__
universe@72: 	rm -f "$TEMP_DIR/checkcc"
universe@72: 	$1 -o "$TEMP_DIR/checkcc" $CFLAGS $LDFLAGS "$TEMP_DIR/test.c" 2> /dev/null
universe@72: }
universe@72: 
universe@72: check_cpp_compiler()
universe@72: {
universe@72: 	cat > "$TEMP_DIR/test.cpp" << __EOF__
universe@72: /* test file */
universe@72: #include <iostream>
universe@72: int main(int argc, char **argv) {
universe@72: #if defined(__clang__)
universe@72: 	std::cout << "clang" << std::endl;
universe@72: #elif defined(__GNUC__)
universe@72: 	std::cout << "gcc" << std::endl;
universe@72: #elif defined(__sun)
universe@72: 	std::cout << "suncc" << std::endl;
universe@72: #else
universe@72: 	std::cout << "cc" << std::endl;
universe@72: #endif
universe@72: 	return 0;
universe@72: }
universe@72: __EOF__
universe@72: 	rm -f "$TEMP_DIR/checkcc"
universe@72: 	$1 -o "$TEMP_DIR/checkcc" $CXXFLAGS $LDFLAGS "$TEMP_DIR/test.cpp" 2> /dev/null
universe@72: }
universe@72: 
universe@72: create_libtest_source()
universe@72: {
universe@72:   # $1: filename
universe@72:   # $2: optional include
universe@72: 	cat > "$TEMP_DIR/$1" << __EOF__
universe@72: /* libtest file */
universe@72: int main(int argc, char **argv) {
universe@72: 	return 0;
universe@72: }
universe@72: __EOF__
universe@72:   if [ -n "$2" ]; then
universe@72:     echo "#include <$2>" >> "$TEMP_DIR/$1"
universe@72:   fi
universe@72: }
universe@72: 
universe@72: check_c_lib()
universe@72: {
universe@72:   # $1: libname
universe@72:   # $2: optional include
universe@72:   if [ -z "$TOOLCHAIN_CC" ]; then
universe@72:     return 1
universe@72:   fi
universe@72:   create_libtest_source "test.c" "$2"
universe@72:   rm -f "$TEMP_DIR/checklib"
universe@72: 	$TOOLCHAIN_CC -o "$TEMP_DIR/checklib" $CFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.c" 2> /dev/null
universe@72: }
universe@72: 
universe@72: check_cpp_lib()
universe@72: {
universe@72:   # $1: libname
universe@72:   # $2: optional include
universe@72:   if [ -z "$TOOLCHAIN_CXX" ]; then
universe@72:     return 1
universe@72:   fi
universe@72: 	create_libtest_source "test.cpp" "$2"
universe@72:   rm -f "$TEMP_DIR/checklib"
universe@72: 	$TOOLCHAIN_CXX -o "$TEMP_DIR/checklib" $CXXFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.cpp" 2> /dev/null
universe@72: }
universe@72: 
universe@72: check_lib()
universe@72: {
universe@72:   # $1: libname
universe@72:   # $2: optional include
universe@72: 	if [ -n "$TOOLCHAIN_CC" ]; then
universe@72: 		check_c_lib "$1" "$2"
universe@72: 	elif  [ -n "$TOOLCHAIN_CXX" ]; then
universe@72: 	  check_cpp_lib "$1" "$2"
universe@72: 	fi
universe@72: }
universe@72: 
universe@72: detect_c_compiler()
universe@72: {
universe@72:   if [ -n "$TOOLCHAIN_CC" ]; then
universe@72:     return 0
universe@72:   fi
universe@72:   printf "detect C compiler... "
universe@72:   if [ -n "$CC" ]; then
universe@72:     if check_c_compiler "$CC"; then
universe@72:       TOOLCHAIN_CC=$CC
universe@72:       TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@72:       echo "$CC"
universe@72:       return 0
universe@72:     else
universe@72:       echo "$CC is not a working C compiler"
universe@72:       return 1
universe@72:     fi
universe@72:   else
universe@72:     for COMP in $C_COMPILERS
universe@72:     do
universe@72:       if check_c_compiler "$COMP"; then
universe@72:         TOOLCHAIN_CC=$COMP
universe@72:         TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@72:         echo "$COMP"
universe@72:         return 0
universe@72:       fi
universe@72:     done
universe@72:     echo "not found"
universe@72:     return 1
universe@72:   fi
universe@72: }
universe@72: 
universe@72: detect_cpp_compiler()
universe@72: {
universe@72:   if [ -n "$TOOLCHAIN_CXX" ]; then
universe@72:     return 0
universe@72:   fi
universe@72:   printf "detect C++ compiler... "
universe@72: 
universe@72:   if [ -n "$CXX" ]; then
universe@72:     if check_cpp_compiler "$CXX"; then
universe@72:       TOOLCHAIN_CXX=$CXX
universe@72:       TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@72:       echo "$CXX"
universe@72:       return 0
universe@72:     else
universe@72:       echo "$CXX is not a working C++ compiler"
universe@72:       return 1
universe@72:     fi
universe@72:   else
universe@72:     for COMP in $CPP_COMPILERS
universe@72:     do
universe@72:       if check_cpp_compiler "$COMP"; then
universe@72:         TOOLCHAIN_CXX=$COMP
universe@72:         TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"`
universe@72:         echo "$COMP"
universe@72:         return 0
universe@72:       fi
universe@72:     done
universe@72:     echo "${TOOLCHAIN_CXX:-"not found"}"
universe@72:     return 1
universe@72:   fi
universe@72: }
universe@72: 
universe@72: write_toolchain_defaults()
universe@72: {
universe@72:   echo "# toolchain" >> "$1"
universe@72:   if [ -n "$TOOLCHAIN_CC" ]; then
universe@72:     echo "CC = ${TOOLCHAIN_CC}" >> "$1"
universe@72:   fi
universe@72:   if [ -n "$TOOLCHAIN_CXX" ]; then
universe@72:     echo "CXX = ${TOOLCHAIN_CXX}" >> "$1"
universe@72:   fi
universe@72:   echo >> "$1"
universe@72:   if [ -f "make/${TOOLCHAIN_NAME}.mk" ]; then
universe@72:     cat "make/${TOOLCHAIN_NAME}.mk" >> "$1"
universe@72:   elif [ -f "make/cc.mk" ]; then
universe@72:     cat "make/cc.mk" >> "$1"
universe@72:   else
universe@72:     echo "!!! WARNING !!! Default toolchain flags not found. Configuration might be incomplete."
universe@72:   fi
universe@72: }