mirror of
https://github.com/HDFGroup/hdf5.git
synced 2025-02-05 15:42:32 +08:00
86d0132279
Code cleanup/bug fix
Description:
Remove the undocumented "$NOFP" shell variable which would allow production
builds without removing the stack frame. This was cascading between C and
FORTRAN builds and causing problems.
Solution:
Hard-code removing the stack frame for now. Users would have needed to
read the configure scripts anyway, so there's not really much benefit to the
extra knob. Users who need this functionality (production builds with stack
frames) are debugging probably, so they will need to modify the script and
build their own version of the library now.
Platforms tested:
Linux 2.4 (verbena)
Too minor to require h5committest
265 lines
8.8 KiB
Bash
265 lines
8.8 KiB
Bash
# -*- shell-script -*-
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#
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# This file should be sourced into configure if the compiler is the
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# GNU gcc compiler or a derivative. It is careful not to do anything
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# if the compiler is not GNU; otherwise `cc_flags_set' is set to `yes'
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#
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# Get the compiler version in a way that works for gcc, egcs, and
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# pgcc unless a compiler version is already known
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#
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# cc_vendor: The compiler name: gcc, egcs, or pgcc
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# cc_version: Version number: 2.91.60, 2.7.2.1
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#
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if test X = "X$cc_flags_set"; then
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cc_version="`$CC $CFLAGS -v 2>&1 |grep 'gcc version' |\
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sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`"
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cc_vendor=`echo $cc_version |sed 's/\([a-z]*\).*/\1/'`
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cc_version=`echo $cc_version |sed 's/[-a-z]//g'`
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if test X = "X$cc_vendor" -a X != "X$cc_version"; then
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cc_vendor=gcc
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fi
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if test "-" != "$cc_vendor-$cc_version"; then
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echo "compiler '$CC' is GNU $cc_vendor-$cc_version"
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fi
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# Some version numbers
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cc_vers_major=`echo $cc_version | cut -f1 -d.`
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cc_vers_minor=`echo $cc_version | cut -f2 -d.`
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cc_vers_patch=`echo $cc_version | cut -f3 -d.`
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test -n "$cc_vers_major" || cc_vers_major=0
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test -n "$cc_vers_minor" || cc_vers_minor=0
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test -n "$cc_vers_patch" || cc_vers_patch=0
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cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch`
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fi
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# GCC compilers before gcc-2.8.1 have problems with `long long'.
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if test gcc = "$cc_vendor" -a "$cc_vers_all" -lt 2008001; then
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cat <<EOF
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**
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** This compiler may be unable to properly compile the long long
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** data type used extensively by hdf5, although specifying
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** --disable-hsizet for configure may work around those bugs.
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** There may be other code generation problems also, especially
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** when optimizations are enabled. Please upgrade to at least GNU
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** gcc version 2.8.1 before reporting bugs to the HDF5 team.
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**
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EOF
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sleep 5
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# GCC v2.96 (shipped with RH7.x) has problems with `float'-> `double' conversions.
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elif test gcc = "$cc_vendor" -a "$cc_vers_all" -eq 2096000; then
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cat <<EOF
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**
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** This compiler may have problems converting 'float' values to
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** 'double' values. There may be other code generation problems
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** as well.
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**
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** Please use a different version of gcc before reporting bugs.
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**
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EOF
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sleep 5
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# Current EGCS compilers have problems with `long long' and register
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# allocation when optimizations are turned on for x86 systems.
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elif test egcs = "$cc_vendor" -a "$cc_vers_all" -le 2091066; then
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if test "$HSIZET" != "large"; then
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cat <<EOF
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**
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** This compiler may have problems allocating registers when
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** optimizations are enabled on some platforms. Specifying
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** --disable-hsizet usually avoids the bug.
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**
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EOF
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sleep 5
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fi
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# All current versions of PGCC have problems also.
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elif test pgcc = "$cc_vendor" -a "$cc_vers_all" -le 2091066; then
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cat <<EOF
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**
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** This compiler may have problems allocating registers for long
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** long data types when optimizations are enabled. There may be
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** other code generation problems as well. We know of no version
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** of pgcc which is capable of compiling HDF5 in production mode.
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** Please use gcc-2.8 or egcs-1.1.1 before reporting bugs.
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**
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EOF
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sleep 5
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fi
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# Common GCC flags for various situations
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case "$cc_vendor-$cc_version" in
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gcc*|egcs*|pgcc*)
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# Architecture-specific flags
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arch=
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case "$host_os-$host_cpu" in
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# FreeBSD sets the information from "uname -m" to the general machine
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# architecture, not the specific CPU for the machine, so even our
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# Pentium II Xeon server is set to "i386". Once we know we are on a FreeBSD
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# machine, use the "sysctl" command to get the CPU hardware model.
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freebsd*-i386)
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host_cpu_model=`sysctl -n hw.model`
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case "$host_cpu_model" in
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# Hmm.. this might not catch Celerons, but it won't hurt them either...
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*Pro*|*II*|*III*|*IV*|*Athlon*)
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arch="-march=i686"
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;;
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esac
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;;
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*-i686)
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arch="-march=i686"
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;;
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esac
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# Host-specific flags
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case "`hostname`" in
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sleipnir.ncsa.uiuc.edu)
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arch="$arch -pipe"
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;;
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esac
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# General
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CFLAGS="$CFLAGS $arch -ansi -pedantic -Wall -W -Wundef -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion -Wsign-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Winline"
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# Production
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case "$cc_vendor-$cc_version" in
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gcc-2.95.[34])
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PROD_CFLAGS="-O3"
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;;
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gcc-3.[0-4]*)
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# The optimization level is reduced for gcc 3.* due to problems
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# with code generation for src/H5Tconv.c with the -O2 & -O3
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# optimization levels for gcc 3.2.2 and gcc 3.3.2 (which shows up as
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# failures for various integer types -> long long conversions in the
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# test/dtypes test). Perhaps later versions of gcc will fix this
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# bug... - QAK - 2003/10/20
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PROD_CFLAGS="-O"
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;;
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gcc-3*)
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# Be optimistic about future versions of gcc.. :-) - QAK - 2003/10/20
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PROD_CFLAGS="-O3"
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;;
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*)
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PROD_CFLAGS="-O"
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;;
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esac
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PROD_CFLAGS="$PROD_CFLAGS -fomit-frame-pointer -finline-functions"
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PROD_CPPFLAGS=
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# Debug
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DEBUG_CFLAGS="-g -fverbose-asm"
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DEBUG_CPPFLAGS=
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# Profile
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PROFILE_CFLAGS="-g -pg"
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PROFILE_CPPFLAGS=
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# Flags are set
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cc_flags_set=yes
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;;
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esac
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# Version specific GCC flags
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#
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# Please follow the pattern below by adding new versions at the top, copying
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# the information from the previous version and adding modifications to that.
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case "$cc_vendor-$cc_version" in
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gcc-3.4*)
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# Replace -ansi flag with -std=c99 flag
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CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
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# Disable warnings about using 'long long' type
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CFLAGS="$CFLAGS -Wno-long-long"
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# Append warning flags from gcc-3* case
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CFLAGS="$CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
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# Append warning flags from gcc-3.2* case
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CFLAGS="$CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wmultichar"
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# The "format=2" warning generates too many warnings about valid
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# usage in the library.
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#CFLAGS="$CFLAGS -Wformat=2"
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# The "unreachable code" warning does not appear to be reliable yet...
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#CFLAGS="$CFLAGS -Wunreachable-code"
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# Append warning flags from gcc-3.3* case
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CFLAGS="$CFLAGS -Wendif-labels"
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# Append more extra warning flags that only gcc3.4+ know about
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CFLAGS="$CFLAGS -Wdeclaration-after-statement -Wold-style-definition -Winvalid-pch"
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;;
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gcc-3.3*)
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# Replace -ansi flag with -std=c99 flag
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CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
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# Disable warnings about using 'long long' type
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CFLAGS="$CFLAGS -Wno-long-long"
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# Append warning flags from gcc-3* case
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CFLAGS="$CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
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# Append warning flags from gcc-3.2* case
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CFLAGS="$CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wmultichar"
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# The "format=2" warning generates too many warnings about valid
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# usage in the library.
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#CFLAGS="$CFLAGS -Wformat=2"
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# The "unreachable code" warning does not appear to be reliable yet...
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#CFLAGS="$CFLAGS -Wunreachable-code"
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# Append more extra warning flags that only gcc3.3+ know about
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CFLAGS="$CFLAGS -Wendif-labels"
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;;
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gcc-3.2*)
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# Replace -ansi flag with -std=c99 flag
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CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
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# Disable warnings about using 'long long' type
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CFLAGS="$CFLAGS -Wno-long-long"
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# Append warning flags from gcc-3* case
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CFLAGS="$CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
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# Append more extra warning flags that only gcc3.2+ know about
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CFLAGS="$CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wmultichar"
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# The "format=2" warning generates too many warnings about valid
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# usage in the library.
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#CFLAGS="$CFLAGS -Wformat=2"
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# The "unreachable code" warning does not appear to be reliable yet...
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#CFLAGS="$CFLAGS -Wunreachable-code"
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;;
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gcc-3*)
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# Replace -ansi flag with -std=c99 flag
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CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
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# Disable warnings about using 'long long' type
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CFLAGS="$CFLAGS -Wno-long-long"
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# Append some extra warning flags that only gcc3+ know about
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CFLAGS="$CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
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;;
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gcc-2.9[56]*)
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# Disable warnings about using 'long long' type
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CFLAGS="$CFLAGS -Wno-long-long"
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;;
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esac
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# Clear cc info if no flags set
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if test "X$cc_flags_set" = "X"; then
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cc_vendor=
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cc_version=
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fi
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