diff options
| author | Richard Levitte <levitte@openssl.org> | 2018-01-23 13:54:55 +0100 |
|---|---|---|
| committer | Richard Levitte <levitte@openssl.org> | 2018-01-28 07:26:10 +0100 |
| commit | 8c3bc594e0c74926bfefb84b8bae8a2fac82e465 (patch) | |
| tree | 7875c47a8ecd68f42f701e6f3602a8cc0c4fe0dc /Configurations/README | |
| parent | df05f155a69b96b174e0e47bc689bf729de684b6 (diff) | |
Processing GNU-style "make variables" - separate CPP flags from C flags
C preprocessor flags get separated from C flags, which has the
advantage that we don't get loads of macro definitions and inclusion
directory specs when linking shared libraries, DSOs and programs.
This is a step to add support for "make variables" when configuring.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5177)
Diffstat (limited to 'Configurations/README')
| -rw-r--r-- | Configurations/README | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/Configurations/README b/Configurations/README index 9d5dc5c55c..aa0c5fba8b 100644 --- a/Configurations/README +++ b/Configurations/README @@ -45,6 +45,19 @@ In each table entry, the following keys are significant: Note: if the same feature is both enabled and disabled, disable wins. + cpp => The C preprocessor command, normally not + given, as the build file defaults are + usually good enough. + cppflags => The C preprocessor flags. + defines => As an alternative, macro definitions may be + given here instead of in `cppflags'. If + given here, they MUST be as an array of the + string such as "MACRO=value", or just + "MACRO" for definitions without value. + includes => As an alternative, inclusion directories + may be given here instead of in `cppflags'. + If given here, the MUST be an array of + strings, one directory specification each. cc => The C compiler command, usually one of "cc", "gcc" or "clang". This command is normally also used to link object files and @@ -59,11 +72,6 @@ In each table entry, the following keys are significant: cxxflags => Flags that are used at all times when compiling C++ object files. If unset, it gets the same value as cflags. - defines => As an alternative, macro definitions may be - present here instead of in `cflags'. If - given here, they MUST be as an array of the - string such as "MACRO=value", or just - "MACRO" for definitions without value. shared_cflag => Extra compilation flags used when compiling for shared libraries, typically something like "-fPIC". |