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Diffstat (limited to 'fortran/config/gnu-flags')
| -rw-r--r-- | fortran/config/gnu-flags | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/fortran/config/gnu-flags b/fortran/config/gnu-flags new file mode 100644 index 0000000..99c9419 --- /dev/null +++ b/fortran/config/gnu-flags @@ -0,0 +1,227 @@ +# -*- 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 + 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 + +# 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 |