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Fix #892: use -msse4 rather than -msse4.1 in Makefiles #991

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Merged
mhucka merged 2 commits into from
Jan 6, 2026
+3 −3
Merged

Fix #892: use -msse4 rather than -msse4.1 in Makefiles #991

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06e18a4
Use `-msse4` rather than `-msse4.1`
mhucka Jan 6, 2026
4124983
Use `-msse4` rather than `-msse4.1` for consistency
mhucka Jan 6, 2026
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2 changes: 1 addition & 1 deletion pybind_interface/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ endif

# The flags for the compilation of the simd-specific Pybind11 interfaces
PYBINDFLAGS_BASIC = $(PYBINDFLAGS)
PYBINDFLAGS_SSE = -msse4.1 $(PYBINDFLAGS)
PYBINDFLAGS_SSE = -msse4 $(PYBINDFLAGS)
PYBINDFLAGS_AVX2 = -mavx2 -mfma $(PYBINDFLAGS)
PYBINDFLAGS_AVX512 = -mavx512f -mbmi2 $(PYBINDFLAGS)

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2 changes: 1 addition & 1 deletion pybind_interface/sse/CMakeLists.txt
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Expand Up @@ -21,7 +21,7 @@ if(WIN32)
# This prevents a conflict with /RTC1 in DEBUG builds.
add_compile_options($<$<NOT:$<CONFIG:Debug>>:/O2>)
else()
add_compile_options(-msse4.1 -O3 -flto=auto)
add_compile_options(-msse4 -O3 -flto=auto)
endif()

if(APPLE)
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2 changes: 1 addition & 1 deletion tests/Makefile
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Expand Up @@ -25,7 +25,7 @@ SSE_FILES =
AVX2_FILES =
AVX512_FILES =
ifneq (,$(HAVE_SSE))
SSE_FLAGS ?= -msse4.1
SSE_FLAGS ?= -msse4
SSE_FILES := $(wildcard *_sse_test.cc)
endif
ifneq (,$(HAVE_AVX2))
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