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authorsanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
committersanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
commita4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 (patch)
tree13bd5bfa15e6fea2a12f176bae79adf9c6fd0933 /3rdparty/plibsys/cmake/VisibilityDetect.cmake
parentbde3e4f1bb7b8f8abca0884a7d994ee1c17a66b1 (diff)
add plibsys
Diffstat (limited to '3rdparty/plibsys/cmake/VisibilityDetect.cmake')
-rw-r--r--3rdparty/plibsys/cmake/VisibilityDetect.cmake127
1 files changed, 127 insertions, 0 deletions
diff --git a/3rdparty/plibsys/cmake/VisibilityDetect.cmake b/3rdparty/plibsys/cmake/VisibilityDetect.cmake
new file mode 100644
index 0000000..cbf23cd
--- /dev/null
+++ b/3rdparty/plibsys/cmake/VisibilityDetect.cmake
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+# The MIT License
+#
+# Copyright (C) 2018 Alexander Saprykin <saprykin.spb@gmail.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# 'Software'), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+function (plibsys_detect_visibility cflags ldflags)
+ if (WIN32 OR CYGWIN OR MSYS)
+ set (${cflags} "" PARENT_SCOPE)
+ set (${ldflags} "" PARENT_SCOPE)
+ return()
+ endif()
+
+ # Check GCC
+ check_c_source_compiles ("int main () {
+ #if (__GNUC__ >= 4) && !defined(_CRAYC) && \\\\
+ !defined(__sun) && !defined(sun) && \\\\
+ !defined(__hpux) && !defined(hpux) && \\\\
+ !defined(__sgi) && !defined(sgi) && \\\\
+ !defined(__osf__) && !defined(__osf) && \\\\
+ !defined(__OS2__) \\\\
+ !defined(_AIX) && !defined(__CYGWIN__) && !defined(__MSYS__)
+ return 0;
+ #else
+ stop_compile_here
+ #endif
+ }"
+ PLIBSYS_HAS_GCC_VISIBILITY
+ )
+
+ if (PLIBSYS_HAS_GCC_VISIBILITY)
+ set (${cflags} "-fvisibility=hidden" PARENT_SCOPE)
+ set (${ldflags} "" PARENT_SCOPE)
+ return()
+ endif()
+
+ # Check Sun Studio
+ check_c_source_compiles ("int main () {
+ #if (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)) || \\\\
+ (defined(__SUNPRO_CC) && (__SUNPRO_CC >= 0x5110))
+ return 0;
+ #else
+ stop_compile_here
+ #endif
+ }"
+ PLIBSYS_HAS_SUN_VISIBILITY
+ )
+
+ if (PLIBSYS_HAS_SUN_VISIBILITY)
+ set (${cflags} "" PARENT_SCOPE)
+ set (${ldlags} "-xldscope=__hidden" PARENT_SCOPE)
+ return()
+ endif()
+
+ # Check IBM XL C
+ check_c_source_compiles ("int main () {
+ #if (defined(__xlC__) && (__xlC__ >= 0x0D01))
+ return 0;
+ #else
+ stop_compile_here
+ #endif
+ }"
+ PLIBSYS_HAS_XLC_VISIBILITY
+ )
+
+ if (PLIBSYS_HAS_XLC_VISIBILITY)
+ set (${cflags} "-qvisibility=hidden" PARENT_SCOPE)
+ set (${ldflags} "" PARENT_SCOPE)
+ return()
+ endif()
+
+ # Check HP C/aC++
+ check_c_source_compiles ("int main () {
+ #if (defined(__HP_cc) && (__HP_cc >= 0x061500)) || \\\\
+ (defined(__HP_aCC) && (__HP_aCC >= 0x061500))
+ return 0;
+ #else
+ stop_compile_here
+ #endif
+ }"
+ PLIBSYS_HAS_HP_VISIBILITY
+ )
+
+ if (PLIBSYS_HAS_HP_VISIBILITY)
+ set (${cflags} "-Bhidden" PARENT_SCOPE)
+ set (${ldflags} "" PARENT_SCOPE)
+ return()
+ endif()
+
+ # Check Clang
+ check_c_source_compiles ("int main () {
+ #if defined(__has_attribute) && __has_attribute(visibility)
+ return 0;
+ #else
+ stop_compile_here
+ #endif
+ }"
+ PLIBSYS_HAS_CLANG_VISIBILITY
+ )
+
+ if (PLIBSYS_HAS_CLANG_VISIBILITY)
+ set (${cflags} "-fvisibility=hidden" PARENT_SCOPE)
+ set (${ldflags} "" PARENT_SCOPE)
+ return()
+ endif()
+
+ # Empty result
+ set (${cflags} "" PARENT_SCOPE)
+ set (${ldflags} "" PARENT_SCOPE)
+endfunction (plibsys_detect_visibility)