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diff --git a/build/gen.py b/build/gen.py
index fce8fb18..2927da5f 100755
--- a/build/gen.py
+++ b/build/gen.py
@@ -260,17 +260,12 @@ def WriteGNNinja(path, options, linux_sysroot):
if options.debug:
cflags.extend(['-O0', '-g'])
else:
- cflags.append('-DNDEBUG')
- cflags.append('-O3')
- ldflags.append('-O3')
# Use -fdata-sections and -ffunction-sections to place each function
# or data item into its own section so --gc-sections can eliminate any
# unused functions and data items.
cflags.extend(['-fdata-sections', '-ffunction-sections'])
ldflags.extend(['-fdata-sections', '-ffunction-sections'])
ldflags.append('-Wl,-dead_strip' if is_mac else '-Wl,--gc-sections')
- # Omit all symbol information from the output file.
- ldflags.append('-Wl,-S' if is_mac else '-Wl,-strip-all')
# Enable identical code-folding.
if options.use_icf:
ldflags.append('-Wl,--icf=all')
@@ -279,11 +274,11 @@ def WriteGNNinja(path, options, linux_sysroot):
'-D_FILE_OFFSET_BITS=64',
'-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS',
'-pthread',
- '-pipe',
'-fno-exceptions',
'-fno-rtti',
])
cflags_cc.extend(['-std=c++14', '-Wno-c++11-narrowing'])
+ ldflags.append('-pthread')
if is_linux:
if linux_sysroot:
@@ -293,15 +288,6 @@ def WriteGNNinja(path, options, linux_sysroot):
# probably resolve this and (re-)add a way to build against libc++.
cflags.append('--sysroot=' + linux_sysroot)
ldflags.append('--sysroot=' + linux_sysroot)
- cflags.append('-stdlib=libstdc++')
- ldflags.extend(['-static-libstdc++',
- '-stdlib=libstdc++',
- '-Wl,--as-needed',
- ])
- libs.extend([
- '-lgcc_s',
- '-lpthread',
- ])
elif is_mac:
min_mac_version_flag = '-mmacosx-version-min=10.9'
cflags.append(min_mac_version_flag)
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