New port: math/flexfloat: C library for the emulation of reduced-precision floating point types

svn path=/head/; revision=534003

math/Makefile

@@ -261,6 +261,7 @@
     SUBDIR += fftw3-long
     SUBDIR += fftw3-quad
     SUBDIR += flann
+    SUBDIR += flexfloat
     SUBDIR += flint2
     SUBDIR += flintqs
     SUBDIR += form

math/flexfloat/Makefile

@@ -0,0 +1,38 @@
+# $FreeBSD$
+
+PORTNAME=	flexfloat
+DISTVERSION=	g20190814
+CATEGORIES=	math
+
+MAINTAINER=	yuri@FreeBSD.org
+COMMENT=	C library for the emulation of reduced-precision floating point types
+
+LICENSE=	APACHE20
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+USES=		cmake
+USE_GITHUB=	yes
+GH_ACCOUNT=	oprecomp
+GH_TAGNAME=	6db869087a12d763a94d53e9b0a9d52def270865
+USE_LDCONFIG=	yes
+USE_GCC=	any # clang doesn't support __float128
+
+CMAKE_OFF=	BUILD_TESTS BUILD_EXAMPLES
+
+PLIST_FILES=	include/flexfloat/flexfloat.h \
+		include/flexfloat/flexfloat.hpp \
+		include/flexfloat/flexfloat_config.h \
+		lib/libflexfloat.so
+
+do-install:
+	${MKDIR} ${STAGEDIR}${PREFIX}/include/flexfloat
+	${INSTALL_DATA} ${WRKSRC}/include/*.h ${WRKSRC}/include/*.hpp ${STAGEDIR}${PREFIX}/include/flexfloat
+	${INSTALL_LIB} ${BUILD_WRKSRC}/libflexfloat.so ${STAGEDIR}${PREFIX}/lib
+
+do-test: # one test, value_representation_half, fails: https://github.com/oprecomp/flexfloat/issues/9
+	@cd ${BUILD_WRKSRC} && \
+		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -DBUILD_TESTS:BOOL=ON ${CMAKE_SOURCE_PATH} && \
+		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} ${ALL_TARGET} && \
+		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} test
+
+.include <bsd.port.mk>

math/flexfloat/distinfo

@@ -0,0 +1,3 @@
+TIMESTAMP = 1588634273
+SHA256 (oprecomp-flexfloat-g20190814-6db869087a12d763a94d53e9b0a9d52def270865_GH0.tar.gz) = 889f1c31d0053f561cc8bfdf8f9c458bf1a8491d8ab9b3fe1b857c671359ba52
+SIZE (oprecomp-flexfloat-g20190814-6db869087a12d763a94d53e9b0a9d52def270865_GH0.tar.gz) = 28313

math/flexfloat/files/patch-CMakeLists.txt

@@ -0,0 +1,11 @@
+--- CMakeLists.txt.orig	2020-05-04 23:28:52 UTC
++++ CMakeLists.txt
+@@ -29,7 +29,7 @@ set(library_SOURCES
+     src/flexfloat.c
+ )
+ 
+-add_library(flexfloat STATIC ${library_SOURCES})
++add_library(flexfloat SHARED ${library_SOURCES})
+ 
+ target_include_directories(flexfloat PUBLIC ${PROJECT_SOURCE_DIR}/include)
+ 

math/flexfloat/files/patch-include_flexfloat.h

@@ -0,0 +1,16 @@
+--- include/flexfloat.h.orig	2020-05-04 23:21:19 UTC
++++ include/flexfloat.h
+@@ -40,9 +40,10 @@ extern "C" {
+ #pragma STDC FENV_ACCESS ON
+ #endif
+ 
+-#ifndef __STDC_IEC_559__
+-#error "Implementation not IEEE compliant"
+-#endif
++// not clear why this should/shouldn't
++//#ifndef __STDC_IEC_559__
++//#error "Implementation not IEEE compliant"
++//#endif
+ 
+ // GCC versions before 8.2 (for sure not on 7.2, don't know when it was fixed) don't raise flags on comparisons correctly
+ #if !defined(__GNUC__) || (defined(__GNUC__) && (__GNUC__ >= 8) && (__GNUC_MINOR__ >= 2))

math/flexfloat/pkg-descr

@@ -0,0 +1,4 @@
+FlexFloat is a C library for the emulation of reduced-precision floating point
+types.
+
+WWW: https://github.com/oprecomp/flexfloat