277 lines
7.1 KiB
Bash
Executable File
277 lines
7.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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CONFIG="config.mk"
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PREFIX="/usr/local"
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LIBDIR="$PREFIX/lib"
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INCLUDEDIR="$PREFIX/include"
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PKGCONFIGDIR="$LIBDIR/pkgconfig"
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VERSION=$(grep LIQ_VERSION_STRING libimagequant.h | grep -Eo "2\.[0-9.]+")
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DEBUG=
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QUIET=0
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SSE=auto
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OPENMP=
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EXTRA_CFLAGS=
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EXTRA_LDFLAGS=
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# make gcc default compiler unless CC is already set
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CC=${CC:-gcc}
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help() {
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printf "%4s %s\n" "" "$1"
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}
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for i in "$@"; do
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case $i in
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--help|-h)
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echo
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help "--prefix=<dir> installation directory [$PREFIX]"
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help "--libdir=<dir> installation directory [$LIBDIR]"
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help "--includedir=<dir> installation directory [$INCLUDEDIR]"
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help "--pkgconfigdir=<dir> installation directory [$PKGCONFIGDIR]"
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help "--extra-cflags=<flags> append to CFLAGS"
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help "--extra-ldflags=<flags> append to LDFLAGS"
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echo
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help "--enable-debug"
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help "--enable-sse/--disable-sse enable/disable SSE instructions"
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echo
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help "--with-openmp=static compile with multicore support"
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echo
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help "CC=<compiler> use given compiler command"
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help "CFLAGS=<flags> pass options to the compiler"
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help "LDFLAGS=<flags> pass options to the linker"
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echo
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exit 0
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;;
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# Can be set before or after configure. Latter overrides former.
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CC=*)
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CC=${i#*=}
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;;
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CFLAGS=*)
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CFLAGS=${i#*=}
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;;
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LDFLAGS=*)
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LDFLAGS=${i#*=}
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;;
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--enable-debug)
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DEBUG=1
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;;
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--enable-sse)
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SSE=1
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;;
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--disable-sse)
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SSE=0
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;;
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--quiet)
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QUIET=1
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;;
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'')
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# allows a bash quirk
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;;
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--with-openmp)
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OPENMP=1
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;;
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--with-openmp=static)
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OPENMP=static
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;;
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--prefix=*)
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PREFIX=${i#*=}
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LIBDIR="$PREFIX/lib"
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INCLUDEDIR="$PREFIX/include"
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PKGCONFIGDIR="$LIBDIR/pkgconfig"
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;;
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--libdir=*)
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LIBDIR=${i#*=}
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PKGCONFIGDIR="$LIBDIR/pkgconfig"
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;;
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--includedir=*)
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INCLUDEDIR=${i#*=}
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;;
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--pkgconfigdir=*)
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PKGCONFIGDIR=${i#*=}
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;;
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# can be used multiple times or in quotes to set multiple flags
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--extra-cflags=*)
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EXTRA_CFLAGS="$EXTRA_CFLAGS ${i#*=}"
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;;
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--extra-ldflags=*)
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EXTRA_LDFLAGS="$EXTRA_LDFLAGS ${i#*=}"
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;;
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*)
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echo "warning: unknown switch '${i%%=*}' (see $0 --help for the list)"
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;;
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esac
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done
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# If someone runs sudo make install as very first command, and configure later,
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# $CONFIG cannot be overwritten, and must be deleted before continuing.
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if [[ -f "$CONFIG" && ! -w "$CONFIG" ]]; then
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echo "Cannot overwrite file $CONFIG! Please delete it."
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exit 1
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fi
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cflags() {
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CFLAGS="$CFLAGS $1"
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}
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lflags() {
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LDFLAGS="$LDFLAGS $1"
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}
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status() {
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if [ "$QUIET" -ne 1 ]; then
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printf "%10s: %s\n" "$1" "$2"
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fi
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}
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# Append to CFLAGS if compiler supports flag, with optional prerequisite.
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# Fails on errors and warnings.
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conditional_cflags() {
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if [ -z "$(echo | "$CC" -xc -S -o /dev/null $2 $1 - 2>&1)" ]; then
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cflags "$1"
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fi
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}
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error() {
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status "$1" "error ... $2"
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echo
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exit 1
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}
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if [ "$QUIET" -ne 1 ]; then
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echo
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fi
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echo > pngquant-gcccheck.c "int main(){}"
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if ! "$CC" -std=c99 -o pngquant-gcccheck pngquant-gcccheck.c; then
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rm -f pngquant-gcccheck pngquant-gcccheck.c
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error "Compiler" "$CC failed to compile anything (make sure it's installed and supports C99)"
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fi
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rm -f pngquant-gcccheck pngquant-gcccheck.c
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status "Compiler" "$CC"
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# init flags
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CFLAGS=${CFLAGS:--fno-math-errno -funroll-loops -fomit-frame-pointer -Wall}
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cflags "-std=c99 -I."
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# DEBUG
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if [ -z "$DEBUG" ]; then
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cflags "-O3 -DNDEBUG"
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status "Debug" "no"
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else
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cflags "-O1 -g -DDEBUG"
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status "Debug" "yes"
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fi
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# SSE
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if [ "$SSE" = 'auto' ]; then
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SSE=0
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if type uname > /dev/null; then
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if [[ "$(uname -m)" =~ "amd64" || "$(uname -m)" =~ "x86_64" ||
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"$(grep -E -m1 "^flags" /proc/cpuinfo)" =~ "sse" ]]; then
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SSE=1
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fi
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fi
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fi
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if [ "$SSE" -eq 1 ]; then
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status "SSE" "yes"
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cflags "-DUSE_SSE=1"
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cflags "-msse"
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# Silence a later ICC warning due to -msse working slightly different.
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conditional_cflags "-wd10121"
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# Must be set explicitly for GCC on x86_32. Other compilers imply it.
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conditional_cflags "-mfpmath=sse" "-msse"
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elif [ "$SSE" -eq 0 ]; then
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status "SSE" "no"
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cflags "-DUSE_SSE=0"
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fi
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# OpenMP
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if [ -n "$OPENMP" ]; then
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if [ "static" = "$OPENMP" ]; then
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OPENMPFLAGS="-static-libgcc -Bstatic -fopenmp -Bdynamic"
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else
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OPENMPFLAGS="-fopenmp"
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fi
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if [[ "$("$CC" -xc -E $OPENMPFLAGS <(echo "#ifdef _OPENMP
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#include <omp.h>
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#endif") 2>&1)" =~ "omp_get_thread_num" ]]; then
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cflags "$OPENMPFLAGS"
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lflags "$OPENMPFLAGS"
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status "OpenMP" "yes"
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else
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error "OpenMP" "not supported by compiler (please install a compiler that supports OpenMP (e.g. gcc) and specify it with the CC= argument)"
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fi
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else
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# silence warnings about omp pragmas
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cflags "-Wno-unknown-pragmas"
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conditional_cflags "-wd3180" # ICC
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status "OpenMP" "no"
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fi
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# Cocoa
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if [[ "$OSTYPE" =~ "darwin" ]]; then
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cflags "-mmacosx-version-min=10.7"
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lflags "-mmacosx-version-min=10.7"
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fi
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if [[ "$OSTYPE" =~ "darwin" ]]; then
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SOLIBSUFFIX=dylib
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# Search Developer SDK paths, since Apple seems to have dropped the standard Unixy ones
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XCODE_CMD="xcode-select"
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XCODE_PATH=$($XCODE_CMD -p)
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DIRS+=("$XCODE_PATH/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include $XCODE_PATH/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/lib")
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DIRS+=("$XCODE_PATH/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/usr/include $XCODE_PATH/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/usr/lib")
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elif [[ "$OSTYPE" =~ "msys" ]]; then
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SOLIBSUFFIX=dll
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else
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SOLIBSUFFIX=so
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fi
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if [ "$QUIET" -ne 1 ]; then
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echo
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fi
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# As of GCC 4.5, 387 fp math is significantly slower in C99 mode without this.
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# Note: CPUs without SSE2 use 387 for doubles, even when SSE fp math is set.
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conditional_cflags "-fexcess-precision=fast"
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# Intel C++ Compiler
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# ICC does usually only produce fast(er) code when it can optimize to the full
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# capabilites of the (Intel) CPU. This is equivalent to -march=native for GCC.
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conditional_cflags "-xHOST"
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# Disable unsafe fp optimizations and enforce fp precision as set in the source.
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conditional_cflags "-fp-model source"
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# Silence a gold linker warning about string misalignment.
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conditional_cflags "-falign-stack=maintain-16-byte"
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lflags "-lm" # Ubuntu requires this library last, issue #38
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if [ -n "$EXTRA_CFLAGS" ]; then
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cflags "$EXTRA_CFLAGS"
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fi
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if [ -n "$EXTRA_LDFLAGS" ]; then
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lflags "$EXTRA_LDFLAGS"
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fi
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# Overwrite previous configuration.
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echo "
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# auto-generated by configure
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PREFIX = $PREFIX
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LIBDIR = $LIBDIR
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INCLUDEDIR = $INCLUDEDIR
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PKGCONFIGDIR = $PKGCONFIGDIR
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VERSION = $VERSION
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CC = $CC
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CFLAGS = $CFLAGS
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LDFLAGS = $LDFLAGS
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SOLIBSUFFIX = $SOLIBSUFFIX
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" > "$CONFIG"
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