patch 9.1.0622: MS-Windows: mingw-build can be optimized
Commit:
https://github.com/vim/vim/commit/032accd98b6915b5d642a2d059cc666c2c786579
Author: Ken Takata <[email protected]>
Date: Fri Jul 26 18:51:20 2024 +0200
patch 9.1.0622: MS-Windows: mingw-build can be optimized
Problem: MS-Windows: mingw-build can be optimized
Solution: use --gc-sections to reduce the size of the executable
(Ken Takata)
Use the --gc-sections linker option and the -ffunction-sections compiler
option to reduce the size of the executable files. To make these work,
the -fno-asynchronous-unwind-tables compiler option is also needed.
This is enabled by default and can be disabled by `USE_GC_SECTIONS=no`.
Note: A similar feature has been already used in MSVC. (The /OPT linker
option.)
related: #15350
Signed-off-by: Ken Takata <[email protected]>
Signed-off-by: Christian Brabandt <[email protected]>
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index 911adb5ee..a0c10b113 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -130,7 +130,6 @@ ifndef STATIC_STDCPLUS
STATIC_STDCPLUS=no
endif
-
# Link against the shared version of libwinpthread by default. Set
# STATIC_WINPTHREAD to "yes" to link against static version instead.
ifndef STATIC_WINPTHREAD
@@ -140,6 +139,12 @@ endif
# This is used when STATIC_STDCPLUS=yes.
HAS_GCC_EH=yes
+# Reduce the size of the executables by using the --gc-sections linker
+# option. Set USE_GC_SECTIONS to "no" if you see any issues with this.
+ifndef USE_GC_SECTIONS
+USE_GC_SECTIONS=yes
+endif
+
# If the user doesn't want gettext, undefine it.
ifeq (no, $(GETTEXT))
GETTEXT=
@@ -1093,6 +1098,16 @@ LIB += -lgcc_eh
LIB += -Wl,-Bstatic -lwinpthread -Wl,-Bdynamic
endif
+# To reduce the file size
+ifeq (yes, $(USE_GC_SECTIONS))
+CFLAGS += -ffunction-sections -fno-asynchronous-unwind-tables
+CXXFLAGS += -fasynchronous-unwind-tables
+LFLAGS += -Wl,--gc-sections
+ ifeq (yes, $(VIMDLL))
+EXELFLAGS += -Wl,--gc-sections
+ endif
+endif
+
ifeq (yes, $(MAP))
LFLAGS += -Wl,-Map=$(TARGET).map
endif
diff --git a/src/version.c b/src/version.c
index a70a97812..01aea1f24 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 622,
/**/
621,
/**/
--
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