Detect pipe (#1385)

fmtlib · Nov 13, 2019 · bf61ce7 · bf61ce7
1 parent 1f91815
commit bf61ce7
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -136,9 +136,11 @@ endif ()
 include(CheckSymbolExists)
 if (WIN32)
   check_symbol_exists(open io.h HAVE_OPEN)
+  check_symbol_exists(pipe io.h HAVE_PIPE)
   check_symbol_exists(_strtod_l "${strtod_l_headers}" HAVE_STRTOD_L)
 else ()
   check_symbol_exists(open fcntl.h HAVE_OPEN)
+  set(HAVE_PIPE TRUE)
   check_symbol_exists(strtod_l "${strtod_l_headers}" HAVE_STRTOD_L)
 endif ()
 
@@ -155,7 +157,7 @@ add_headers(FMT_HEADERS chrono.h color.h compile.h core.h format.h format-inl.h
                         locale.h ostream.h printf.h ranges.h
                         safe-duration-cast.h)
 set(FMT_SOURCES src/format.cc)
-if (HAVE_OPEN)
+if (HAVE_OPEN AND HAVE_PIPE)
   add_headers(FMT_HEADERS posix.h)
   set(FMT_SOURCES ${FMT_SOURCES} src/posix.cc)
 endif ()