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cmke: add *_USE_STATIC_LIBS options for 9 dependencies

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Via options:

- `BROTLI_USE_STATIC_LIBS`
- `CARES_USE_STATIC_LIBS`
- `LIBSSH_USE_STATIC_LIBS`
- `LIBSSH2_USE_STATIC_LIBS`
- `MBEDTLS_USE_STATIC_LIBS`
- `NGHTTP2_USE_STATIC_LIBS`
- `NGHTTP3_USE_STATIC_LIBS`
- `NGTCP2_USE_STATIC_LIBS`
- `ZSTD_USE_STATIC_LIBS`

When enabled, make a "best effort" finding static libs first and set
the "build static" macro (on Windows) as required by the dependency.

When doing `pkg-config`-based detections, make curl select the static
configuration, which shall set the "build static" macro also.

These options resemble CMake's `OPENSSL_USE_STATIC_LIBS` and
`ZLIB_USE_STATIC_LIBS` (the latter does not support `pkg-config` as of
CMake v4.2.2).

Shared/static library selection based on loose filename conventions is
fragile and prone to break if the non-static-suffixed library is found
and happens to be a shared library, or, if the linker decides to pick up
a shared copy (e.g. `.a.dll`) that shadows the static one. It may help
to provide either static or shared, but not both, on the disk, and match
that with this setting.

Experimental.

Ref: #20013
Closes #20015
This commit is contained in:
Viktor Szakats 2025-12-17 00:11:52 +01:00
parent 3aa4fbf2d4
commit 26c39d8df1
No known key found for this signature in database
GPG key ID: B5ABD165E2AEF201
10 changed files with 178 additions and 56 deletions
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24
CMake/FindLibssh.cmake
View file

@ -25,14 +25,15 @@
#
# Input variables:
#
# - `LIBSSH_INCLUDE_DIR`: Absolute path to libssh include directory.
# - `LIBSSH_LIBRARY`: Absolute path to `libssh` library.
# - `LIBSSH_INCLUDE_DIR`: Absolute path to libssh include directory.
# - `LIBSSH_LIBRARY`: Absolute path to `libssh` library.
# - `LIBSSH_USE_STATIC_LIBS`: Configure for static libssh libraries.
#
# Defines:
#
# - `LIBSSH_FOUND`: System has libssh.
# - `LIBSSH_VERSION`: Version of libssh.
# - `CURL::libssh`: libssh library target.
# - `LIBSSH_FOUND`: System has libssh.
# - `LIBSSH_VERSION`: Version of libssh.
# - `CURL::libssh`: libssh library target.
set(_libssh_pc_requires "libssh")
@ -47,10 +48,21 @@ if(_libssh_FOUND)
set(Libssh_FOUND TRUE)
set(LIBSSH_FOUND TRUE)
set(LIBSSH_VERSION ${_libssh_VERSION})
if(LIBSSH_USE_STATIC_LIBS)
set(_libssh_CFLAGS "${_libssh_STATIC_CFLAGS}")
set(_libssh_INCLUDE_DIRS "${_libssh_STATIC_INCLUDE_DIRS}")
set(_libssh_LIBRARY_DIRS "${_libssh_STATIC_LIBRARY_DIRS}")
set(_libssh_LIBRARIES "${_libssh_STATIC_LIBRARIES}")
endif()
message(STATUS "Found Libssh (via pkg-config): ${_libssh_INCLUDE_DIRS} (found version \"${LIBSSH_VERSION}\")")
else()
find_path(LIBSSH_INCLUDE_DIR NAMES "libssh/libssh.h")
find_library(LIBSSH_LIBRARY NAMES "ssh" "libssh")
if(LIBSSH_USE_STATIC_LIBS)
set(_libssh_CFLAGS "-DLIBSSH_STATIC")
find_library(LIBSSH_LIBRARY NAMES "ssh_static" "libssh_static" "ssh" "libssh")
else()
find_library(LIBSSH_LIBRARY NAMES "ssh" "libssh")
endif()
unset(LIBSSH_VERSION CACHE)
if(LIBSSH_INCLUDE_DIR AND EXISTS "${LIBSSH_INCLUDE_DIR}/libssh/libssh_version.h")