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authorSimon Zeni <simon@bl4ckb0ne.ca>2020-10-27 22:31:21 -0400
committerJens Axboe <axboe@kernel.dk>2020-10-28 16:32:16 -0600
commit1cf969dfcba797a02d74540965677b92d3884cfa (patch)
treec84b1a7083b0d9f746714c661e3c506bf27f218d /configure
parenta1ab3bd0ad5841fd9a548defc744625019ebbcf3 (diff)
downloadliburing-1cf969dfcba797a02d74540965677b92d3884cfa.tar.gz
examples: disable ucontext-cp if ucontext.h is not available
The header file `ucontext.h` is not available on musl based distros. The example `ucontext-cp` is not built if `configure` fails to locate the header. Signed-off-by: Simon Zeni <simon@bl4ckb0ne.ca> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure21
1 files changed, 21 insertions, 0 deletions
diff --git a/configure b/configure
index c911f59..3b96cde 100755
--- a/configure
+++ b/configure
@@ -287,6 +287,24 @@ if compile_prog_cxx "" "" "C++"; then
fi
print_config "C++" "$has_cxx"
+##########################################
+# check for ucontext support
+has_ucontext="no"
+cat > $TMPC << EOF
+#include <ucontext.h>
+int main(int argc, char **argv)
+{
+ ucontext_t ctx;
+ getcontext(&ctx);
+ return 0;
+}
+EOF
+if compile_prog "" "" "has_ucontext"; then
+ has_ucontext="yes"
+fi
+print_config "has_ucontext" "$has_ucontext"
+
+
#############################################################################
if test "$__kernel_rwf_t" = "yes"; then
@@ -304,6 +322,9 @@ fi
if test "$has_cxx" = "yes"; then
output_sym "CONFIG_HAVE_CXX"
fi
+if test "$has_ucontext" = "yes"; then
+ output_sym "CONFIG_HAVE_UCONTEXT"
+fi
echo "CC=$cc" >> $config_host_mak
print_config "CC" "$cc"