[geos-commits] [SCM] GEOS branch main updated. bccdbfa6a7bf77c0283eac6f47e2252b01a4a4ae

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      from  79390691cfe0d428ab75bf10448b9cb82696e917 (commit)

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- Log -----------------------------------------------------------------
commit bccdbfa6a7bf77c0283eac6f47e2252b01a4a4ae
Author: Maxim Kochetkov <adobegitler at gmail.com>
Date:   Tue Sep 16 12:13:38 2025 +0300

    geosop: make floating-point exceptions optional (#1305)
    
    commit 26292ce ("geosop: show most floating-point exceptions in verbose mode")
    add fenv.h dependency. Some libc implementations (uclibc-ng )may have no fenv
    support. So make floating-point exceptions optional and detetct fenv.h at
    configure stage.
    
    Signed-off-by: Maxim Kochetkov <fido_max at inbox.ru>

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 12411e586..a1e2f0c6e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -558,3 +558,10 @@ if(PROJECT_IS_TOP_LEVEL)
 
   unset(_is_multi_config_generator)
 endif()  # PROJECT_IS_TOP_LEVEL
+
+include(CheckIncludeFile)
+check_include_file(fenv.h HAVE_FENV_H)
+
+if(HAVE_FENV_H)
+    target_compile_definitions(geos_cxx_flags INTERFACE HAVE_FENV)
+endif()
diff --git a/util/geosop/GeosOp.cpp b/util/geosop/GeosOp.cpp
index 2cb17f000..05307cf30 100644
--- a/util/geosop/GeosOp.cpp
+++ b/util/geosop/GeosOp.cpp
@@ -26,7 +26,9 @@
 #include <geos/io/WKBStreamReader.h>
 #include <geos/io/WKBWriter.h>
 
+#if defined(HAVE_FENV)
 #include <cfenv>
+#endif
 #include <fstream>
 #include <iostream>
 #include <sstream>
@@ -394,10 +396,13 @@ void GeosOp::run(OpArguments& opArgs) {
     //------------------------
 
     try {
+#if defined(HAVE_FENV)
         std::feclearexcept(FE_ALL_EXCEPT); // clear floating-point status flags
+#endif
 
         execute(op, opArgs);
 
+#if defined(HAVE_FENV)
         // Catch everything except for FE_INEXACT, which is usually harmless
         const int fpexp = std::fetestexcept(FE_ALL_EXCEPT ^ FE_INEXACT);
         if (args.isVerbose && (fpexp != 0)) {
@@ -414,6 +419,7 @@ void GeosOp::run(OpArguments& opArgs) {
                 std::cerr << " FE_UNDERFLOW";
             std::cerr << std::endl;
         }
+#endif
     }
     catch (std::exception &e) {
         std::cerr << "Run-time exception: " << e.what() << std::endl;

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

Summary of changes:
 CMakeLists.txt         | 7 +++++++
 util/geosop/GeosOp.cpp | 6 ++++++
 2 files changed, 13 insertions(+)


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