From 2432e8a282fe00a8a2783c7c30386c98bdc4df84 Mon Sep 17 00:00:00 2001
From: gambas <g4mba5@gmail.com>
Date: Mon, 7 Feb 2022 21:50:33 +0100
Subject: [PATCH] Use C++17 now to compile 'gb.pdf'.

[GB.PDF]
* BUG: Use C++17 now to compile 'gb.pdf'.

Gbp-Pq: Name build-PDF-support-with-C-17.patch
---
 acinclude.m4           | 12 ++++++++++++
 gb.pdf/src/Makefile.am |  7 ++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index df97105c..c5e4df0f 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -399,6 +399,18 @@ AC_DEFUN([GB_INIT],
     AC_DEFINE(HAVE_GCC_STD_CPP11, 1, [Whether g++ supports -std=c++11])
   fi
   
+  dnl ---- check for -std=c++17 compiler flag
+  
+  GB_CXXFLAGS_GCC_OPTION([-std=c++17],,
+    [
+      GB_CXXFLAGS_STD_CPP11=" -std=c++17"
+      have_gcc_std_cpp11x=yes
+    ])
+  
+  if test "$have_gcc_std_cpp17" = "yes"; then
+    AC_DEFINE(HAVE_GCC_STD_CPP17, 1, [Whether g++ supports -std=c++17])
+  fi
+  
   dnl ---- Debug flags
 
   if test "$gambas_debug" = "yes"; then
diff --git a/gb.pdf/src/Makefile.am b/gb.pdf/src/Makefile.am
index eda3f0f3..ba2a7781 100644
--- a/gb.pdf/src/Makefile.am
+++ b/gb.pdf/src/Makefile.am
@@ -5,11 +5,12 @@ gblib_LTLIBRARIES = gb.pdf.la
 
 gb_pdf_la_LIBADD = @POPPLER_LIB@
 gb_pdf_la_LDFLAGS = -module @LD_FLAGS@ @POPPLER_LDFLAGS@
-gb_pdf_la_CXXFLAGS = $(AM_CXXFLAGS) $(GB_CXXFLAGS_STD_CPP11)
+gb_pdf_la_CXXFLAGS = $(AM_CXXFLAGS) $(GB_CXXFLAGS_STD_CPP17)
 gb_pdf_la_CPPFLAGS = @POPPLER_INC@
 
-gb_pdf_la_SOURCES = main.h main.cpp \
-                        CPdfDocument.h CPdfDocument.cpp 
+gb_pdf_la_SOURCES = \
+ main.h main.cpp \
+ CPdfDocument.h CPdfDocument.cpp 
 
 
 
-- 
2.30.2