6.49.2. Contents of Libffi
Installed library:
libffi.so
The Libffi library provides a portable, high level programming interface to various calling conventions. This allows a programmer to call any function specified by a call interface description at run time.
Modify the Makefile to install headers into the standard
/usr/include directory instead of
/usr/lib/libffi-3.2.1/include.
sed -e '/^includesdir/ s/$(libdir).*$/$(includedir)/' \
-i include/Makefile.in
sed -e '/^includedir/ s/=.*$/=@includedir@/' \
-e 's/^Cflags: -I${includedir}/Cflags:/' \
-i libffi.pc.in
Prepare libffi for compilation:
./configure --prefix=/usr --disable-static --with-gcc-arch=native
The meaning of the configure option:
--with-gcc-arch=native
Ensure gcc optimizes for the current system. If this is not specified, the system is guessed and the code generated may not be correct for some systems. If the generated code will be copied from the native system to a less capable system, use the less capable system as a parameter. For details about alternative system types, see the x86 options in the gcc manual.
Compile the package:
make
To test the results, issue:
make check
Install the package:
make install