# -*- shell-script -*- # # This file should be sourced into configure if the compiler is the # GNU gcc compiler or a derivative. It is careful not to do anything # if the compiler is not GNU; otherwise `cc_flags_set' is set to `yes' # # Get the compiler version in a way that works for gcc, egcs, and # pgcc unless a compiler version is already known # # cc_vendor: The compiler name: gcc, egcs, or pgcc # cc_version: Version number: 2.91.60, 2.7.2.1 # if test X = "X$cc_flags_set"; then cc_version="`$CC $CFLAGS -v 2>&1 |grep 'gcc version' |\ sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`" cc_vendor=`echo $cc_version |sed 's/\([a-z]*\).*/\1/'` cc_version=`echo $cc_version |sed 's/[-a-z]//g'` if test X = "X$cc_vendor" -a X != "X$cc_version"; then cc_vendor=gcc fi if test "-" != "$cc_vendor-$cc_version"; then echo "compiler '$CC' is GNU $cc_vendor-$cc_version" fi # Some version numbers cc_vers_major=`echo $cc_version | cut -f1 -d.` cc_vers_minor=`echo $cc_version | cut -f2 -d.` cc_vers_patch=`echo $cc_version | cut -f3 -d.` test -n "$cc_vers_major" || cc_vers_major=0 test -n "$cc_vers_minor" || cc_vers_minor=0 test -n "$cc_vers_patch" || cc_vers_patch=0 cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch` fi # GCC compilers before gcc-2.8.1 have problems with `long long'. if test gcc = $cc_vendor -a $cc_vers_all -lt 2008001; then cat <<EOF ** ** This compiler may be unable to properly compile the long long ** data type used extensively by hdf5, although specifying ** --disable-hsizet for configure may work around those bugs. ** There may be other code generation problems also, especially ** when optimizations are enabled. Please upgrade to at least GNU ** gcc version 2.8.1 before reporting bugs to the HDF5 team. ** EOF sleep 5 # Current EGCS compilers have problems with `long long' and register # allocation when optimizations are turned on for x86 systems. elif test egcs = $cc_vendor -a $cc_vers_all -le 2091066; then if test "$HSIZET" != "large"; then cat <<EOF ** ** This compiler may have problems allocating registers when ** optimizations are enabled on some platforms. Specifying ** --disable-hsizet usually avoids the bug. ** EOF sleep 5 fi # All current versions of PGCC have problems also. elif test pgcc = $cc_vendor -a $cc_vers_all -le 2091066; then cat <<EOF ** ** This compiler may have problems allocating registers for long ** long data types when optimizations are enabled. There may be ** other code generation problems as well. We know of no version ** of pgcc which is capable of compiling HDF5 in production mode. ** Please use gcc-2.8 or egcs-1.1.1 before reporting bugs. ** EOF sleep 5 fi # Architecture-specific flags case "$host_os-$host_cpu" in # FreeBSD sets the information from "hostname -m" to the general machine # architecture, not the specific CPU for the machine, so even our # Pentium II Xeon server is set to "i386". Once we know we are on a FreeBSD # machine, use the "sysctl" command to get the CPU hardware model. freebsd*) host_cpu_model=`sysctl -n hw.model` case "$host_cpu_model" in # Hmm.. this might not catch Celerons, but it won't hurt them either... *Pro*|*II*) # This check should be kept in sync with the *-i686 check below case "$cc_vendor-$cc_version" in gcc-2.95*) ARCH=${ARCH:="-march=i686 -malign-double"} ;; gcc-*|egcs-*|pgcc-*) ARCH=${ARCH:="-mcpu=pentiumpro -march=pentiumpro -malign-double"} ;; esac ;; esac ;; *-i686) case "$cc_vendor-$cc_version" in gcc-2.95*) ARCH=${ARCH:="-march=i686 -malign-double"} ;; gcc-*|egcs-*|pgcc-*) ARCH=${ARCH:="-mcpu=pentiumpro -march=pentiumpro -malign-double"} ;; esac ;; esac # Host-specific flags case "`hostname`" in hawkwind.ncsa.uiuc.edu) ARCH="$ARCH -pipe" ;; esac # Compiler flags case "$cc_vendor-$cc_version" in gcc-2.7*) # General CFLAGS="$CFLAGS $ARCH -ansi" # Production PROC_CFLAGS="-O3 $NOFP -finline-functions -Wno-shadow" PROD_CPPFLAGS= # Debug DEBUG_CFLAGS="-g -fverbose-asm -Wno-shadow" DEBUG_CPPFLAGS= # Profile PROFILE_CFLAGS=-pg PROFILE_CPPFLAGS= # Flags are set cc_flags_set=yes ;; gcc-2.8.*) # General CFLAGS="$CFLAGS $ARCH -Wsign-compare" # Production PROD_CFLAGS="-O3 $NOFP -finline-functions -fschedule-insns2 -Wno-shadow" PROD_CPPFLAGS= # Debug DEBUG_CFLAGS="-g -fverbose-asm -Wno-shadow" DEBUG_CPPFLAGS= # Profile PROFILE_CFLAGS=-pg PROFILE_CPPFLAGS= # Flags are set cc_flags_set=yes ;; gcc-2.95*) # General CFLAGS="$CFLAGS $ARCH -Wsign-compare" # Production PROD_CFLAGS="-O6 $NOFP -Wno-shadow" PROD_CPPFLAGS= # Debug DEBUG_CFLAGS="-g -fverbose-asm -Wno-shadow" DEBUG_CPPFLAGS= # Profile PROFILE_CFLAGS=-pg PROFILE_CPPFLAGS= # Flags are set cc_flags_set=yes ;; egcs-2.*|pgcc-2.*) # General CFLAGS="$CFLAGS $ARCH -Wsign-compare" # Production PROD_CFLAGS="-O6 $NOFP -Wno-shadow" PROD_CPPFLAGS= # Debug DEBUG_CFLAGS="-g -fverbose-asm -Wno-shadow" DEBUG_CPPFLAGS= # Profile PROFILE_CFLAGS=-pg PROFILE_CPPFLAGS= # Flags are set cc_flags_set=yes ;; gcc-*|egcs-*|pgcc-*) # This must be some other GNU compiler that we don't know about. # Just use fairly generic flags. # Production PROD_CFLAGS=-O PROD_CPPFLAGS= # Debug DEBUG_CFLAGS=-g DEBUG_CPPFLAGS= # Profile PROFILE_CFLAGS=-pg PROFILE_CPPFLAGS= # Flags are set cc_flags_set=yes ;; esac # Clear cc info if no flags set if test X = "X$cc_flags_set"; then cc_vendor= cc_version= fi