[PATCH] Meson: Make mremap() detecting works correctly

[Juan Quintela]

Without this (at least in Fedora 35) it don't detect mremap()
correctly.

Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 meson.build | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 1fe7d257ff..f96da78741 100644
--- a/meson.build
+++ b/meson.build
@@ -2041,7 +2041,8 @@ config_host_data.set('CONFIG_AVX512F_OPT', 
get_option('avx512f') \
 
 have_pvrdma = get_option('pvrdma') \
   .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics 
libraries') \
-  .require(cc.compiles('''
+  .require(cc.compiles(gnu_source_prefix + '''
+    #include <sys/mman.h>
     int main(void)
     {
       char buf = 0;
-- 
2.35.1