[SCM] PostGIS branch master updated. 3.6.0rc2-156-g1b88d3722

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- Log -----------------------------------------------------------------
commit 1b88d3722487b689b97942c713e62ffce714289c
Author: Darafei Praliaskouski <me at komzpa.net>
Date:   Fri Oct 24 04:01:00 2025 +0400

    Allow the compiler to detect the parallelism for LTO (-flto=auto)
    
    Closes #5702

diff --git a/configure.ac b/configure.ac
index 61ab6bbf2..d89e82c55 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1335,8 +1335,19 @@ if test $ENABLE_DEBUG -eq 1; then
 else
   CFLAGS="$CFLAGS -O2"
   if test $ENABLE_LTO -eq 1; then
-    _LT_COMPILER_OPTION([if $compiler supports -flto],[_cv_flto],[-flto],[],[CFLAGS="$CFLAGS -flto"],[])
-    _LT_LINKER_OPTION([if $compiler supports -flto],[_cv_flto],[[-flto]],[LDFLAGS="$LDFLAGS -flto"])
+    if test "$GCC" = yes; then
+      _LT_COMPILER_OPTION([if $compiler supports -flto=auto],[_cv_flto_auto],[-flto=auto],[],[CFLAGS="$CFLAGS -flto=auto"],[])
+      if test "$_cv_flto_auto" != yes; then
+        _LT_COMPILER_OPTION([if $compiler supports -flto],[_cv_flto],[-flto],[],[CFLAGS="$CFLAGS -flto"],[])
+      fi
+      _LT_LINKER_OPTION([if the linker supports -flto=auto],[_cv_ld_flto_auto],[[-flto=auto]],[LDFLAGS="$LDFLAGS -flto=auto"])
+      if test "$_cv_ld_flto_auto" != yes; then
+        _LT_LINKER_OPTION([if the linker supports -flto],[_cv_ld_flto],[[-flto]],[LDFLAGS="$LDFLAGS -flto"])
+      fi
+    else
+      _LT_COMPILER_OPTION([if $compiler supports -flto],[_cv_flto],[-flto],[],[CFLAGS="$CFLAGS -flto"],[])
+      _LT_LINKER_OPTION([if $compiler supports -flto],[_cv_flto],[[-flto]],[LDFLAGS="$LDFLAGS -flto"])
+    fi
   fi
 fi
 

-----------------------------------------------------------------------

Summary of changes:
 configure.ac | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)


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