universe@753: #!/bin/sh
universe@753: #
universe@753: # toolchain detection
universe@753: #
universe@753: 
universe@815: if isplatform "bsd" && notisplatform "openbsd"; then
universe@815:   C_COMPILERS="clang gcc cc"
universe@815:   CPP_COMPILERS="clang++ g++ CC"
universe@815: else
universe@815:   C_COMPILERS="gcc clang suncc cc"
universe@815:   CPP_COMPILERS="g++ clang++ sunCC CC"
universe@815: fi
universe@815: unset TOOLCHAIN
universe@753: unset TOOLCHAIN_NAME
universe@753: unset TOOLCHAIN_CC
universe@753: unset TOOLCHAIN_CXX
universe@753: 
universe@753: check_c_compiler()
universe@753: {
universe@815:   cat > "$TEMP_DIR/test.c" << __EOF__
universe@753: /* test file */
universe@753: #include <stdio.h>
universe@753: int main(int argc, char **argv) {
universe@815: #if defined(_MSC_VER)
universe@815:   printf("msc\n");
universe@815: #elif defined(__clang__)
universe@815:   printf("clang gnuc\n");
universe@753: #elif defined(__GNUC__)
universe@815:   printf("gcc gnuc\n");
universe@753: #elif defined(__sun)
universe@815:   printf("suncc\n");
universe@753: #else
universe@815:   printf("unknown\n");
universe@753: #endif
universe@815:   return 0;
universe@753: }
universe@753: __EOF__
universe@815:   rm -f "$TEMP_DIR/checkcc"
universe@815:   $1 -o "$TEMP_DIR/checkcc" $CFLAGS $LDFLAGS "$TEMP_DIR/test.c" 2> /dev/null
universe@753: }
universe@753: 
universe@753: check_cpp_compiler()
universe@753: {
universe@815:   cat > "$TEMP_DIR/test.cpp" << __EOF__
universe@753: /* test file */
universe@753: #include <iostream>
universe@753: int main(int argc, char **argv) {
universe@815: #if defined(_MSC_VER)
universe@815:   std::cout << "msc" << std::endl;
universe@815: #elif defined(__clang__)
universe@815:   std::cout << "clang gnuc" << std::endl;
universe@753: #elif defined(__GNUC__)
universe@815:   std::cout << "gcc gnuc" << std::endl;
universe@753: #elif defined(__sun)
universe@815:   std::cout << "suncc" << std::endl;
universe@753: #else
universe@815:   std::cout << "cc" << std::endl;
universe@753: #endif
universe@815:   return 0;
universe@753: }
universe@753: __EOF__
universe@815:   rm -f "$TEMP_DIR/checkcc"
universe@815:   $1 -o "$TEMP_DIR/checkcc" $CXXFLAGS $LDFLAGS "$TEMP_DIR/test.cpp" 2> /dev/null
universe@753: }
universe@753: 
universe@753: create_libtest_source()
universe@753: {
universe@753:   # $1: filename
universe@753:   # $2: optional include
universe@815:   cat > "$TEMP_DIR/$1" << __EOF__
universe@753: /* libtest file */
universe@753: int main(int argc, char **argv) {
universe@815:   return 0;
universe@753: }
universe@753: __EOF__
universe@753:   if [ -n "$2" ]; then
universe@753:     echo "#include <$2>" >> "$TEMP_DIR/$1"
universe@753:   fi
universe@753: }
universe@753: 
universe@753: check_c_lib()
universe@753: {
universe@753:   # $1: libname
universe@753:   # $2: optional include
universe@753:   if [ -z "$TOOLCHAIN_CC" ]; then
universe@753:     return 1
universe@753:   fi
universe@753:   create_libtest_source "test.c" "$2"
universe@753:   rm -f "$TEMP_DIR/checklib"
universe@815:   $TOOLCHAIN_CC -o "$TEMP_DIR/checklib" $CFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.c" 2> /dev/null
universe@753: }
universe@753: 
universe@753: check_cpp_lib()
universe@753: {
universe@753:   # $1: libname
universe@753:   # $2: optional include
universe@753:   if [ -z "$TOOLCHAIN_CXX" ]; then
universe@753:     return 1
universe@753:   fi
universe@815:   create_libtest_source "test.cpp" "$2"
universe@753:   rm -f "$TEMP_DIR/checklib"
universe@815:   $TOOLCHAIN_CXX -o "$TEMP_DIR/checklib" $CXXFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.cpp" 2> /dev/null
universe@753: }
universe@753: 
universe@753: check_lib()
universe@753: {
universe@753:   # $1: libname
universe@753:   # $2: optional include
universe@815:   if [ -n "$TOOLCHAIN_CC" ]; then
universe@815:     check_c_lib "$1" "$2"
universe@815:   elif  [ -n "$TOOLCHAIN_CXX" ]; then
universe@815:     check_cpp_lib "$1" "$2"
universe@815:   fi
universe@753: }
universe@753: 
universe@753: detect_c_compiler()
universe@753: {
universe@753:   if [ -n "$TOOLCHAIN_CC" ]; then
universe@753:     return 0
universe@753:   fi
universe@753:   printf "detect C compiler... "
universe@753:   if [ -n "$CC" ]; then
universe@753:     if check_c_compiler "$CC"; then
universe@753:       TOOLCHAIN_CC=$CC
universe@815:       TOOLCHAIN=`"$TEMP_DIR/checkcc"`
universe@815:       TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
universe@753:       echo "$CC"
universe@753:       return 0
universe@753:     else
universe@753:       echo "$CC is not a working C compiler"
universe@753:       return 1
universe@753:     fi
universe@753:   else
universe@753:     for COMP in $C_COMPILERS
universe@753:     do
universe@753:       if check_c_compiler "$COMP"; then
universe@753:         TOOLCHAIN_CC=$COMP
universe@815:         TOOLCHAIN=`"$TEMP_DIR/checkcc"`
universe@815:         TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
universe@753:         echo "$COMP"
universe@753:         return 0
universe@753:       fi
universe@753:     done
universe@753:     echo "not found"
universe@753:     return 1
universe@753:   fi
universe@753: }
universe@753: 
universe@753: detect_cpp_compiler()
universe@753: {
universe@753:   if [ -n "$TOOLCHAIN_CXX" ]; then
universe@753:     return 0
universe@753:   fi
universe@753:   printf "detect C++ compiler... "
universe@753: 
universe@753:   if [ -n "$CXX" ]; then
universe@753:     if check_cpp_compiler "$CXX"; then
universe@753:       TOOLCHAIN_CXX=$CXX
universe@815:       TOOLCHAIN=`"$TEMP_DIR/checkcc"`
universe@815:       TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
universe@753:       echo "$CXX"
universe@753:       return 0
universe@753:     else
universe@753:       echo "$CXX is not a working C++ compiler"
universe@753:       return 1
universe@753:     fi
universe@753:   else
universe@753:     for COMP in $CPP_COMPILERS
universe@753:     do
universe@753:       if check_cpp_compiler "$COMP"; then
universe@753:         TOOLCHAIN_CXX=$COMP
universe@815:         TOOLCHAIN=`"$TEMP_DIR/checkcc"`
universe@815:         TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
universe@753:         echo "$COMP"
universe@753:         return 0
universe@753:       fi
universe@753:     done
universe@753:     echo "${TOOLCHAIN_CXX:-"not found"}"
universe@753:     return 1
universe@753:   fi
universe@753: }
universe@753: 
universe@753: write_toolchain_defaults()
universe@753: {
universe@753:   echo "# toolchain" >> "$1"
universe@753:   if [ -n "$TOOLCHAIN_CC" ]; then
universe@753:     echo "CC = ${TOOLCHAIN_CC}" >> "$1"
universe@753:   fi
universe@753:   if [ -n "$TOOLCHAIN_CXX" ]; then
universe@753:     echo "CXX = ${TOOLCHAIN_CXX}" >> "$1"
universe@753:   fi
universe@753:   echo >> "$1"
universe@753:   if [ -f "make/${TOOLCHAIN_NAME}.mk" ]; then
universe@753:     cat "make/${TOOLCHAIN_NAME}.mk" >> "$1"
universe@753:   elif [ -f "make/cc.mk" ]; then
universe@753:     cat "make/cc.mk" >> "$1"
universe@753:   else
universe@753:     echo "!!! WARNING !!! Default toolchain flags not found. Configuration might be incomplete."
universe@753:   fi
universe@753: }