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# Maintainer: Daniel Bermond < yahoo-com: danielbermond >
# This package provides pngcrush bundled with libpng and zlib.
# The pngcrush provided in [community] repository uses libpng and zlib from system libraries.
#
# Advantages of having pngcrush bundled with libpng and zlib:
# - produces slightly smaller PNG files
# - ability to read erroneous PNG files with "Too many IDAT's"
# - avoids warnings when pngcrush is not yet rebuild or updated after a libpng/zlib update
#
# Disadvantages of having pngcrush bundled with libpng and zlib:
# - slightly slower execution
# - higher pngcrush executable filesize
_srcname=pngcrush
pkgname=pngcrush-bundled
pkgver=1.8.13
pkgrel=1
pkgdesc='A tool for optimizing the compression of PNG files (with bundled libpng and zlib)'
arch=('i686' 'x86_64')
url='http://pmt.sourceforge.net/pngcrush/'
license=('custom')
depends=('glibc')
provides=('pngcrush')
conflicts=('pngcrush')
source=("https://sourceforge.net/projects/pmt/files/pngcrush/${pkgver}/pngcrush-${pkgver}.tar.xz")
sha256sums=('8fc18bcbcc65146769241e20f9e21e443b0f4538d581250dce89b1e969a30705')
prepare() {
cd "${_srcname}-${pkgver}"
sed -r 's|^(CPPFLAGS )=|\1+=|' -i Makefile
sed -r 's|^(CFLAGS )=|\1+=|' -i Makefile
sed -r 's|^(LDFLAGS )=|\1+=|' -i Makefile
}
build() {
cd "${_srcname}-${pkgver}"
make
}
package() {
cd "${_srcname}-${pkgver}"
# install pngcrush executable
install -D -m755 pngcrush "${pkgdir}/usr/bin/pngcrush"
# create a LICENSE file for pngcrush. Note: license is in the file 'pngcrush.c'
sed -n '10,159p' pngcrush.c > LICENSE-pngcrush # create file
sed -i '1,150s/^.\{,3\}//' LICENSE-pngcrush # erase C comments
# modify sections in cexcept, libpng and zlib to reflect the provided LICENSE files
sed -i '80s/lines 10/LICENSE-cexcept./' LICENSE-pngcrush
sed -i -e '81d' LICENSE-pngcrush
sed -i "84s/If libpng/libpng/" LICENSE-pngcrush
sed -i "84s/,/ and/" LICENSE-pngcrush
sed -i "85s/png.h/LICENSE-libpng/" LICENSE-pngcrush
sed -i "89s/If zlib/zlib/" LICENSE-pngcrush
sed -i "89s/,/ and/" LICENSE-pngcrush
sed -i "91s/zlib.h/LICENSE-zlib/" LICENSE-pngcrush
sed -i '1ipngcrush' LICENSE-pngcrush # include software name at the top
sed -i '2i\\' LICENSE-pngcrush # insert blank line after
# create a LICENSE file for cexcept. Note: license is in the file 'cexcept.h'
sed -n '10,17p' cexcept.h > LICENSE-cexcept # create file
sed -i '1,8s/^.\{,4\}//' LICENSE-cexcept # erase leading spaces
sed -i '1icexcept' LICENSE-cexcept # include software name at the top
sed -i '2i\\' LICENSE-cexcept # insert blank line after
# create a LICENSE file for libpng (note: license is in the file 'png.h')
sed -n '21,109p' png.h > LICENSE-libpng # create file
sed -i '1,89s/^.\{,3\}//' LICENSE-libpng # erase C comments
sed -i '1ilibpng' LICENSE-libpng # include software name at the top
sed -i '2i\\' LICENSE-libpng # insert blank line after
# create a LICENSE file for zlib (note: license is in the file 'zlib.h')
sed -n '4,28p' zlib.h > LICENSE-zlib # create file
sed -i '1,25s/^.\{,2\}//' LICENSE-zlib # erase leading spaces
sed -i '1izlib' LICENSE-zlib # include software name at the top
sed -i '2i\\' LICENSE-zlib # insert blank line after
# install LICENSE files
install -D -m644 LICENSE-pngcrush "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE-pngcrush"
install -D -m644 LICENSE-cexcept "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE-cexcept"
install -D -m644 LICENSE-libpng "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE-libpng"
install -D -m644 LICENSE-zlib "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE-zlib"
}
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