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Detect MSVC version and architecture via preprocessor

This commit is contained in:
Ben Visness 2023-09-20 21:10:48 -05:00 committed by MartinFouilleul
parent 37c00bd42f
commit 24d61aaeab
2 changed files with 23 additions and 6 deletions
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20
scripts/dev.py
View File

@ -408,22 +408,30 @@ def ensure_programs():
if platform.system() == "Windows": if platform.system() == "Windows":
MSVC_MAJOR, MSVC_MINOR = 19, 35 MSVC_MAJOR, MSVC_MINOR = 19, 35
try: try:
result = subprocess.run(["cl"], capture_output=True, text=True) cl_only = subprocess.run(["cl"], capture_output=True, text=True)
if "for x64" not in result.stderr: desc = cl_only.stderr.splitlines()[0]
detect = subprocess.run(["cl", "/EP", "scripts\\msvc_version.txt"], capture_output=True, text=True)
parts = [x for x in detect.stdout.splitlines() if x]
version, arch = int(parts[0]), parts[1]
major, minor = int(version / 100), version % 100
if arch != "x64":
msg = log_error("MSVC is not running in 64-bit mode. Make sure you are running in") msg = log_error("MSVC is not running in 64-bit mode. Make sure you are running in")
msg.more("an x64 Visual Studio command prompt, such as the \"x64 Native Tools") msg.more("an x64 Visual Studio command prompt, such as the \"x64 Native Tools")
msg.more("Command Prompt\" from your Start Menu.") msg.more("Command Prompt\" from your Start Menu.")
msg.more() msg.more()
msg.more("MSVC reported itself as:") msg.more("MSVC reported itself as:")
msg.more(result.stderr.splitlines()[0]) msg.more(desc)
exit(1) exit(1)
m = re.search(r"Version (\d+)\.(\d+).(\d+)", result.stderr)
major, minor, patch = int(m.group(1)), int(m.group(2)), int(m.group(3))
if major < MSVC_MAJOR or minor < MSVC_MINOR: if major < MSVC_MAJOR or minor < MSVC_MINOR:
msg = log_error(f"Your version of MSVC is too old. You have version {major}.{minor}.{patch},") msg = log_error(f"Your version of MSVC is too old. You have version {major}.{minor},")
msg.more(f"but version {MSVC_MAJOR}.{MSVC_MINOR} or greater is required.") msg.more(f"but version {MSVC_MAJOR}.{MSVC_MINOR} or greater is required.")
msg.more() msg.more()
msg.more("MSVC reported itself as:")
msg.more(desc)
msg.more()
msg.more("Please update Visual Studio to the latest version and try again.") msg.more("Please update Visual Studio to the latest version and try again.")
exit(1) exit(1)
except FileNotFoundError: except FileNotFoundError:

9
scripts/msvc_version.txt Normal file
View File

@ -0,0 +1,9 @@
_MSC_VER
#if defined(__x86_64__) || defined(_M_X64)
x64
#elif defined(i386) || defined(__i386__) || defined(__i386) || defined(_M_IX86)
x86
#else
unknown
#endif