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265 lines
10 KiB
265 lines
10 KiB
#! /bin/bash
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#
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# Copyright by The HDF Group.
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# All rights reserved.
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#
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# This file is part of HDF5. The full HDF5 copyright notice, including
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# terms governing use, modification, and redistribution, is contained in
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# the COPYING file, which can be found at the root of the source code
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# distribution tree, or in https://www.hdfgroup.org/licenses.
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# If you do not have access to either file, you may request a copy from
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# help@hdfgroup.org.
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#
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# This script runs flex/lex and bison/yacc to generate parser code for
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# the high-level library. It used to be a part of autogen.sh, but many
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# people encountered problems with installing flex and bison on their
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# system and the parser code rarely changes, so those parts of the
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# script were moved to their own file.
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#
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# NOTE CAREFULLY!
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#
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# There is NO dependency in either the autotools or CMake to regenerate
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# the parser code. If you modify H5LT analyze.l or H5LTparse.y, you
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# will need to run this script manually on a system with a suitable
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# lexer and parser generator.
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#
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# IMPORTANT OS X NOTE
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#
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# If you are using OS X, you will probably not have flex or bison
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# installed. In addition, even if you do have bison installed, the bison
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# version you have installed may also have a bug that makes it unable to
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# process our input files.
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#
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# The easiest way to fix this is to install everything via Homebrew:
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#
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# http://brew.sh/
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#
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# After you install the base packages, install flex/bison.
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#
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# brew install flex
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# brew install bison
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#
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# END IMPORTANT OS X NOTE
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#
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# If you want to use a particular version of flex or bison, the paths
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# to each tool can be overridden using the following environment
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# variables:
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#
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# HDF5_FLEX
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# HDF5_BISON
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#
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# This script takes two potential options:
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#
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# -p
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#
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# When this is selected, the flex/bison versions are set to the paths
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# and versions used by The HDF Group to produce the released versions
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# of the library.
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#
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# NOTE: This is probably temporary. Once we update our dev machines
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# to have recent versions of the autotools this option will probably
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# be removed.
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#
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# -v
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#
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# This emits some extra information, mainly tool versions.
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echo
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echo "*******************************************"
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echo "* HDF5 high-level parser generator script *"
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echo "*******************************************"
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echo
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# Default is not verbose output
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verbose=false
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optspec=":hpv-"
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while getopts "$optspec" optchar; do
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case "${optchar}" in
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h)
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echo "usage: $0 [OPTIONS] /path/to/hl/src/directory"
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echo
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echo " -h Print this help message."
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echo
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echo " -p Used by THG to use hard-codes flex/bison"
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echo " paths on THG machines. Not for non-HDF-Group"
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echo " users!"
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echo
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echo " -v Show more verbose output."
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echo
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echo " NOTE: Each tool can be set via an environment variable."
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echo " These are documented inside this script."
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echo
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exit 0
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;;
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p)
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echo "Setting THG production mode..."
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echo
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production=true
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;;
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v)
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echo "Setting verbosity: high"
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echo
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verbose=true
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;;
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*)
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if [ "$OPTERR" != 1 ] || [ "${optspec:0:1}" = ":" ]; then
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echo "Non-option argument: '-${OPTARG}'" >&2
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fi
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;;
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esac
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done
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# Get the path to the hl src directory
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shift $(($OPTIND - 1))
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path_to_hl_src=$1
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if test -z ${path_to_hl_src}; then
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echo "*** ERROR *** - Path to hl/src not set"
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echo "Please add the path to the hl/src directory as a parameter"
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echo "See $0 -h for more help."
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echo
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exit -1
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fi
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if [ "$production" = true ] ; then
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# Production mode
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#
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# Hard-code canonical HDF Group tool locations.
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# If paths to tools are not specified, assume they are
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# located in /usr/hdf/bin/AUTOTOOLS and set paths accordingly.
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if test -z ${HDF5_BISON}; then
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HDF5_BISON=/usr/hdf/bin/AUTOTOOLS/bison
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fi
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if test -z ${HDF5_FLEX}; then
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HDF5_FLEX=/usr/hdf/bin/AUTOTOOLS/flex
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fi
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else
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# Not in production mode
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#
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# If paths to autotools are not specified, use whatever the system
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# has installed as the default. We use 'which <tool>' to
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# show exactly what's being used.
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if test -z ${HDF5_BISON}; then
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HDF5_BISON=$(which bison)
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fi
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if test -z ${HDF5_FLEX}; then
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HDF5_FLEX=$(which flex)
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fi
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fi # production
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# Make sure that these versions of the tools are in the path
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BISON_DIR=`dirname ${HDF5_BISON}`
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FLEX_DIR=`dirname ${HDF5_FLEX}`
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PATH=${FLEX_DIR}:${BISON_DIR}:$PATH
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# Run flex and bison
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# automatically generates hl/src/H5LTanalyze.c and hl/src/H5LTparse.c
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# Note that, as of Xcode 6.1 (2015), the default bison version on OS X
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# is old enough to have the circular dependency bug. You'll have
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# to install a later version of bison. See the OS X note at the top
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# of this script.
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echo
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echo "Generating H5LT parser code (requires yacc/bison):"
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echo "Generate hl/src/H5LTparse.c from hl/src/H5LTparse.y"
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# HDF5_BISON is set via the environment or 'which bison', above
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if test -z ${HDF5_BISON}; then
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echo
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echo "*************************"
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echo " ERROR - bison not found"
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echo "*************************"
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echo "bison is required to generate parser code in H5LT"
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echo
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exit 127
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fi
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if [ "$verbose" = true ] ; then
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${HDF5_BISON} --version
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fi
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${HDF5_BISON} -pH5LTyy -o ${path_to_hl_src}/H5LTparse.c -d ${path_to_hl_src}/H5LTparse.y
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echo
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echo "Generating H5LT lexer code (requires lex/flex):"
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echo "Generate hl/src/H5LTanalyze.c from hl/src/H5LTanalyze.l"
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# HDF5_FLEX is set via the environment or 'which flex', above
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if test -z ${HDF5_FLEX}; then
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echo
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echo "************************"
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echo " ERROR - flex not found"
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echo "************************"
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echo "flex is required to generate lexer code in H5LT"
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echo
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exit 127
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fi
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if [ "$verbose" = true ] ; then
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${HDF5_FLEX} --version
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fi
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${HDF5_FLEX} --nounistd -PH5LTyy -o ${path_to_hl_src}/H5LTanalyze.c ${path_to_hl_src}/H5LTanalyze.l
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# fix H5LTparse.c and H5LTlparse.h to declare H5LTyyparse return type as an
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# hid_t instead of int. Currently the generated function H5LTyyparse is
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# generated with a return value of type int, which is a mapping to the
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# flex yyparse function. The return value in the HL library should be
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# an hid_t.
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# I propose to not use flex to generate this function, but for now I am
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# adding a perl command to find and replace this function declaration in
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# H5LTparse.c.
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perl -0777 -pi -e 's/int yyparse/hid_t yyparse/igs' ${path_to_hl_src}/H5LTparse.c
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perl -0777 -pi -e 's/int\nyyparse/hid_t\nyyparse/igs' ${path_to_hl_src}/H5LTparse.c
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perl -0777 -pi -e 's/int H5LTyyparse/hid_t H5LTyyparse/igs' ${path_to_hl_src}/H5LTparse.c
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perl -0777 -pi -e 's/int yyparse/hid_t yyparse/igs' ${path_to_hl_src}/H5LTparse.h
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perl -0777 -pi -e 's/int\nyyparse/hid_t\nyyparse/igs' ${path_to_hl_src}/H5LTparse.h
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perl -0777 -pi -e 's/int H5LTyyparse/hid_t H5LTyyparse/igs' ${path_to_hl_src}/H5LTparse.h
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# Add code that disables warnings in the flex/bison-generated code.
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#
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# Note that the GCC pragmas did not exist until gcc 4.2. Earlier versions
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# will simply ignore them, but we want to avoid those warnings.
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#
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# Note also that although clang defines __GNUC__, it doesn't support every
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# warning that GCC does.
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for f in ${path_to_hl_src}/H5LTparse.c ${path_to_hl_src}/H5LTanalyze.c
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do
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echo '#if defined (__GNUC__) ' >> tmp.out
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echo '#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402 ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wconversion" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wimplicit-function-declaration" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wmissing-prototypes" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wnested-externs" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wold-style-definition" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wredundant-decls" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsign-compare" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsign-conversion" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wstrict-overflow" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wstrict-prototypes" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wimplicit-fallthrough" ' >> tmp.out
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echo '#if !defined (__clang__) ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wlarger-than=" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsuggest-attribute=const" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsuggest-attribute=pure" ' >> tmp.out
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echo '#endif ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wswitch-default" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wunused-function" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wunused-macros" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wunused-parameter" ' >> tmp.out
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echo '#endif ' >> tmp.out
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echo '#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 600 ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wnull-dereference" ' >> tmp.out
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echo '#endif ' >> tmp.out
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echo '#elif defined __SUNPRO_CC ' >> tmp.out
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echo '#pragma disable_warn ' >> tmp.out
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echo '#elif defined _MSC_VER ' >> tmp.out
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echo '#pragma warning(push, 1) ' >> tmp.out
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echo '#endif ' >> tmp.out
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cat $f >> tmp.out
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mv tmp.out $f
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done
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echo
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exit 0
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