--- /dev/null
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic multiprocessing toolchain-funcs udev
+
+MY_P="Argyll_V${PV}"
+
+DESCRIPTION="Open source, ICC compatible color management system"
+HOMEPAGE="http://www.argyllcms.com/"
+SRC_URI="http://www.argyllcms.com/${MY_P}_src.zip"
+
+LICENSE="AGPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~hppa ~x86"
+IUSE="doc libressl"
+
+RDEPEND="
+ media-libs/tiff:0
+ sys-libs/zlib
+ virtual/jpeg:0
+ x11-libs/libX11
+ x11-libs/libXau
+ x11-libs/libXdmcp
+ x11-libs/libXext
+ x11-libs/libXinerama
+ x11-libs/libXrandr
+ x11-libs/libXxf86vm
+ x11-libs/libXScrnSaver
+ !libressl? ( dev-libs/openssl:0= )
+ libressl? ( dev-libs/libressl:0= )"
+DEPEND="${RDEPEND}"
+BDEPEND="app-arch/unzip
+ dev-util/ftjam"
+
+PATCHES=( "${FILESDIR}"/${P}-fno-common.patch )
+
+S="${WORKDIR}/${MY_P}"
+
+src_compile() {
+ # Make it respect LDFLAGS
+ echo "LINKFLAGS += ${LDFLAGS} ;" >> Jamtop
+
+ # Evil hack to get --as-needed working. The build system unfortunately lists all
+ # the shared libraries by default on the command line _before_ the object to be built...
+ echo "STDLIBS += -ldl -lrt -lX11 -lXext -lXxf86vm -lXinerama -lXrandr -lXau -lXdmcp -lXss -ltiff -ljpeg ;" >> Jamtop
+
+ append-cflags -DUNIX -D_THREAD_SAFE
+
+ sed \
+ -e 's:CCFLAGS:CFLAGS:g' \
+ -e "s:ar rusc:$(tc-getAR) rusc:g" \
+ -i Jambase || die
+
+ tc-export CC RANLIB
+
+ jam -dx -fJambase "-j$(makeopts_jobs)" || die
+}
+
+src_install() {
+ jam -dx -fJambase install || die
+
+ rm bin/License.txt || die
+
+ pushd bin > /dev/null
+ local binname
+ for binname in * ; do
+ newbin ${binname} argyll-${binname}
+ done
+ popd > /dev/null
+
+ dodoc log.txt Readme.txt ttbd.txt notes.txt
+ if use doc; then
+ docinto html
+ dodoc doc/*html doc/*jpg doc/*gif
+ fi
+
+ insinto /usr/share/${PN}
+ doins -r ref
+
+ udev_dorules usb/55-Argyll.rules
+}
+
+pkg_postinst() {
+ elog "If you have a Spyder2 you need to extract the firmware"
+ elog "from the CVSpyder.dll of the windows driver package"
+ elog "and store it as /usr/share/color/spyd2PLD.bin"
+ echo
+ elog "For further info on setting up instrument access read"
+ elog "http://www.argyllcms.com/doc/Installing_Linux.html"
+ echo
+}
--- /dev/null
+argyllcms: Fix compilation with GCC 10
+
+A common mistake in C is omitting extern when declaring a global variable
+in a header file. If the header is included by several files it results
+in multiple definitions of the same variable. In previous GCC versions
+this error is ignored. GCC 10 defaults to -fno-common, which means a
+linker error will now be reported. To fix this, use extern in header
+files when declaring global variables, and ensure each global is defined
+in exactly one C file. As a workaround, legacy C code can be compiled
+with -fcommon.
+
+ int x; // tentative definition - avoid in header files
+ extern int y; // correct declaration in a header file
+
+References:
+https://bugzilla.opensuse.org/show_bug.cgi?id=1160244
+https://bugzilla.opensuse.org/show_bug.cgi?id=1160256
+
+In case of vinflate.c and inflate.c, both files define local variables
+with the same name as global. It is no more possible with GCC 10. To
+prevent sharing variables across files, add "static" to all local
+variables.
+
+Index: Argyll_V2.1.2/gamut/gamut.h
+===================================================================
+--- Argyll_V2.1.2.orig/gamut/gamut.h
++++ Argyll_V2.1.2/gamut/gamut.h
+@@ -36,7 +36,7 @@
+ #define MAXGAMN 10 /* Maximum gamut point neighbors returned */
+ #define NSLOTS 6 /* Number of maximum direction slots */
+
+-struct _vrml *wrl; /* Declared in vrml.h, which may be #included after this */
++struct _vrml; /* Declared in vrml.h, which may be #included after this */
+
+ /* ------------------------------------ */
+ #define NODE_STRUCT \
+Index: Argyll_V2.1.2/spectro/vinflate.c
+===================================================================
+--- Argyll_V2.1.2.orig/spectro/vinflate.c
++++ Argyll_V2.1.2/spectro/vinflate.c
+@@ -92,7 +92,7 @@ int vinflate(void);
+ */
+
+ #define WSIZE 0x8000
+-unsigned int wp; /* current position in slide */
++static unsigned int wp; /* current position in slide */
+ uch slide[32768];
+
+ static int vflush_output(unsigned int w) {
+@@ -160,8 +160,8 @@ static ush cpdext[] = { /* Extra
+ the stream.
+ */
+
+-ulg bb; /* bit buffer */
+-unsigned bk; /* bits in bit buffer */
++static ulg bb; /* bit buffer */
++static unsigned bk; /* bits in bit buffer */
+
+ ush vmask_bits[] = {
+ 0x0000,
+@@ -230,8 +230,8 @@ ush vmask_bits[] = {
+ */
+
+
+-int vlbits = 9; /* bits in base literal/length lookup table */
+-int vdbits = 6; /* bits in base distance lookup table */
++static int vlbits = 9; /* bits in base literal/length lookup table */
++static int vdbits = 6; /* bits in base distance lookup table */
+
+
+ /* If BMAX needs to be larger than 16, then h and x[] should be ulg. */
+@@ -239,7 +239,7 @@ int vdbits = 6; /* bits in base
+ #define N_MAX 288 /* maximum number of codes in any set */
+
+
+-unsigned hufts; /* track memory usage */
++static unsigned hufts; /* track memory usage */
+
+ /* Given a list of code lengths and a maximum table size, make a set of
+ tables to decode that set of codes. Return zero on success, one if
+Index: Argyll_V2.1.2/spectro/inflate.c
+===================================================================
+--- Argyll_V2.1.2.orig/spectro/inflate.c
++++ Argyll_V2.1.2/spectro/inflate.c
+@@ -49,7 +49,7 @@ typedef unsigned int ulg;
+ the next table, which codes e - 16 bits, and lastly e == 99 indicates
+ an unused code. If a code with e == 99 is looked up, this implies an
+ error in the data. */
+-struct huft {
++static struct huft {
+ uch e; /* number of extra bits or operation */
+ uch b; /* number of bits in this code or subcode */
+ union {
+@@ -87,7 +87,7 @@ int inflate(void);
+ /* unsigned wp; current position in slide */
+
+ #define WSIZE 0x8000
+-unsigned int wp; /* current position in slide */
++static unsigned int wp; /* current position in slide */
+ uch slide[32768];
+
+ static int flush_output(unsigned int w) {
+@@ -155,8 +155,8 @@ static ush cpdext[] = { /* Extra
+ the stream.
+ */
+
+-ulg bb; /* bit buffer */
+-unsigned bk; /* bits in bit buffer */
++static ulg bb; /* bit buffer */
++static unsigned bk; /* bits in bit buffer */
+
+ ush mask_bits[] = {
+ 0x0000,
+@@ -201,8 +201,8 @@ ush mask_bits[] = {
+ */
+
+
+-int lbits = 9; /* bits in base literal/length lookup table */
+-int dbits = 6; /* bits in base distance lookup table */
++static int lbits = 9; /* bits in base literal/length lookup table */
++static int dbits = 6; /* bits in base distance lookup table */
+
+
+ /* If BMAX needs to be larger than 16, then h and x[] should be ulg. */
+@@ -210,7 +210,7 @@ int dbits = 6; /* bits in base
+ #define N_MAX 288 /* maximum number of codes in any set */
+
+
+-unsigned hufts; /* track memory usage */
++static unsigned hufts; /* track memory usage */
+
+
+ static int huft_build(b, n, s, d, e, t, m)
+
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