Adjust build instruction for LibRaw 201910

Author: pchev

library/raw/Makefile.linux

@@ -0,0 +1,35 @@
+# Makefile for Linux, FreeBSD, macOS
+# See Readme.txt to install libraw 
+
+CFLAGS= -DLIBRAW_NOTHREADS -O3  -w -fPIC $(arch_flags)
+OSTYPE = $(shell uname)
+
+ifneq ($(findstring BSD,$(OSTYPE)),)
+CXX           = c++
+else
+CXX           = g++
+endif
+
+ifneq ($(findstring Darwin,$(OSTYPE)),)
+SO_Name       = libpasraw.dylib
+LIBFLAGS      = -Wl,-single_module -dynamiclib
+# on macOS, link libraw statically in a single library
+LIBS          = /usr/local/lib/libraw.a -mmacosx-version-min=10.10
+else
+SOName        = libpasraw.so.1
+SO_Name       = libpasraw.so.1.1
+LIBFLAGS      = -shared -Wl,-soname,$(SOName) 
+#LIBFLAGS      = -L/usr/local/lib -I/usr/local/include -shared -Wl,-soname,$(SOName) 
+# on Linux, use the standard shared library
+LIBS          = -lraw
+endif
+
+SRC =	pasraw.cpp 
+
+all: $(SO_Name)
+
+$(SO_Name): $(OBJS)
+	$(CXX) $(CFLAGS) $(LIBFLAGS) -o $@ $(SRC) $(LIBS)
+
+clean:
+	rm -f *.a *.o $(SO_Name)

library/raw/Readme.txt

@@ -4,6 +4,8 @@ This library exist because we cannot link a C++ object directly from Pascal.
 It export C function we can link from Pascal to load a raw buffer and return 
 a pointer to the raw data.
 The rest of the processing is in the Pascal code.
+
+This procedure is tested with "LibRaw 201910 snapshot" it may require adjustement with another version.
 
 LINUX:
 ======