From: Petr Štetiar <ynezz@true.cz>
Date: Mon, 1 Mar 2021 12:27:17 +0000 (+0100)
Subject: build: make GCC version 6+ minimal host build requirement
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ac7034cd12c2018338d58eb1e1911755912f33b0;p=openwrt%2Fstaging%2Fneocturne.git

build: make GCC version 6+ minimal host build requirement

Currently minimal GNU supported GCC version is 7 (from May 2, 2017),
buildbots are using default GCC version 6 on Debian 9 (old stable),
current Debian stable has GCC version 8.3.0.

Signed-off-by: Petr Štetiar <ynezz@true.cz>
---

diff --git a/README.md b/README.md
index b30819205b..cb4b043655 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ the [Build System Setup](https://openwrt.org/docs/guide-developer/build-system/i
 documentation.
 
 ```
-gcc binutils bzip2 flex python3 perl make4.1+ find grep diff unzip gawk getopt
+gcc-6+ binutils bzip2 flex python3 perl make4.1+ find grep diff unzip gawk getopt
 subversion libz-dev libc-dev rsync
 ```
 
diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index f88e853b52..8a6c4bb468 100644
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -25,21 +25,21 @@ $(eval $(call TestHostCommand,proper-umask, \
 
 ifndef IB
 $(eval $(call SetupHostCommand,gcc, \
-	Please install the GNU C Compiler (gcc) 4.8 or later, \
-	$(CC) -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?|10\.?)', \
-	gcc -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?|10\.?)', \
+	Please install the GNU C Compiler (gcc) 6 or later, \
+	$(CC) -dumpversion | grep -E '^([6-9]\.?|10\.?)', \
+	gcc -dumpversion | grep -E '^([6-9]\.?|10\.?)', \
 	gcc --version | grep -E 'Apple.(LLVM|clang)' ))
 
 $(eval $(call TestHostCommand,working-gcc, \
-	\nPlease reinstall the GNU C Compiler (4.8 or later) - \
+	\nPlease reinstall the GNU C Compiler (6 or later) - \
 	it appears to be broken, \
 	echo 'int main(int argc, char **argv) { return 0; }' | \
 		gcc -x c -o $(TMP_DIR)/a.out -))
 
 $(eval $(call SetupHostCommand,g++, \
-	Please install the GNU C++ Compiler (g++) 4.8 or later, \
-	$(CXX) -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?|10\.?)', \
-	g++ -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?|10\.?)', \
+	Please install the GNU C++ Compiler (g++) 6 or later, \
+	$(CXX) -dumpversion | grep -E '^([6-9]\.?|10\.?)', \
+	g++ -dumpversion | grep -E '^([6-9]\.?|10\.?)', \
 	g++ --version | grep -E 'Apple.(LLVM|clang)' ))
 
 $(eval $(call TestHostCommand,working-g++, \