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Turn libfmt-c into a shared library (#4812)

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Linux distros don't like having static archives. Set fmt-c to shared
just like the main fmt library.
This commit is contained in:
Jan Engelhardt 2026-06-26 15:55:44 +02:00 committed by GitHub
parent 62abc0f30a
commit 719823cc64
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GPG Key ID: B5690EEEBB952194
3 changed files with 37 additions and 7 deletions
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13
CMakeLists.txt
View File

@ -417,8 +417,19 @@ target_compile_definitions(fmt-header-only INTERFACE FMT_HEADER_ONLY=1)
target_compile_features(fmt-header-only INTERFACE cxx_std_11)
setup_target(fmt-header-only INTERFACE)
add_library(fmt-c STATIC src/fmt-c.cc)
add_library(fmt-c src/fmt-c.cc)
target_compile_features(fmt-c INTERFACE c_std_11)
if (BUILD_SHARED_LIBS)
target_compile_definitions(
fmt-c
PRIVATE FMT_LIB_EXPORT
INTERFACE FMT_SHARED)
endif ()
set_target_properties(
fmt-c
PROPERTIES VERSION ${FMT_VERSION}
SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
DEBUG_POSTFIX "${FMT_DEBUG_POSTFIX}")
if (MSVC)
target_compile_options(fmt-c PUBLIC /Zc:preprocessor)
endif ()

27
include/fmt/fmt-c.h
View File

@ -12,6 +12,25 @@
#include <stddef.h> // size_t
#include <stdio.h> // FILE
#if defined(__GNUC__)
# define FMT_CVISIBILITY(value) __attribute__((visibility(value)))
#else
# define FMT_CVISIBILITY(value)
#endif
#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
# if defined(FMT_LIB_EXPORT)
# define FMT_CAPI __declspec(dllexport)
# elif defined(FMT_SHARED)
# define FMT_CAPI __declspec(dllimport)
# endif
#elif defined(FMT_LIB_EXPORT) || defined(FMT_SHARED)
# define FMT_CAPI FMT_CVISIBILITY("default")
#endif
#ifndef FMT_CAPI
# define FMT_CAPI
#endif
#ifdef __cplusplus
extern "C" {
#endif
@ -45,9 +64,9 @@ typedef struct {
enum { fmt_error = -1, fmt_error_invalid_arg = -2 };
int fmt_vformat(char* buffer, size_t size, const char* fmt, const fmt_arg* args,
size_t num_args);
int fmt_vprint(FILE* stream, const char* fmt, const fmt_arg* args,
int FMT_CAPI fmt_vformat(char* buffer, size_t size, const char* fmt,
const fmt_arg* args, size_t num_args);
int FMT_CAPI fmt_vprint(FILE* stream, const char* fmt, const fmt_arg* args,
size_t num_args);
#ifdef __cplusplus
@ -92,7 +111,7 @@ static inline fmt_arg fmt_from_ptr(const void* x) {
return (fmt_arg){.type = fmt_pointer, .value.pointer = x};
}
void fmt_unsupported_type(void);
void FMT_CAPI fmt_unsupported_type(void);
# if !defined(_MSC_VER) || defined(__clang__)
typedef signed char fmt_signed_char;

2
test/CMakeLists.txt
View File

@ -243,5 +243,5 @@ endif ()
enable_language(C)
add_executable(c-test c-test.c)
target_link_libraries(c-test PRIVATE fmt::fmt-c)
target_link_libraries(c-test PUBLIC fmt::fmt-c)
add_test(NAME c-test COMMAND c-test)