Not linking against Libgcrypt is not enough, we also should not try to
include headers. This fixes GnuTLS >= 2.12 detection when Libgcrypt
headers are not installed/found.
Only initialize Libgcrypt threading functions on GnuTLS < 2.12 which
does not do this automatically. Also drop explicit linking against
Libgcrypt on newer GnuTLS version.
This should allow GKrellM to work with a GnuTLS that uses Nettle instead
of Libgcrypt as its cryptographic backend.
- Revert gkrellm version header change, there are too many places in code/docs containing the version number, one more or less will not hurt
- configure: Make configure shell script write configure.mk and move logic for compiler and linker flags into configure
- configure: Also search openssl and libntlm via pkg-config and fall back to hardcoded library names for linking if not found
- Makefile: Workaround environment-bugs in win32 toolchain by switching from "override CC" to a normal makefile rule for building .o from .c files
Stefan Gehn