From ab9b0593818d41219cf4d61e9afaaf5d33d5fb7b Mon Sep 17 00:00:00 2001
From: Clemens Schmid <clem.schmid@gmail.com>
Date: Mon, 24 Aug 2026 16:47:47 +0200
Subject: [PATCH 1/2] Add warnings options to scons

---
 SConstruct     | 4 ++++
 src/SConscript | 5 ++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/SConstruct b/SConstruct
index 6e566173..69173099 100644
--- a/SConstruct
+++ b/SConstruct
@@ -123,6 +123,10 @@ vars.Add(EnumVariable(
     'build',
     'compiler settings',
     'fast', allowed_values=('debug', 'fast')))
+vars.Add(EnumVariable(
+    'warnings',
+    'warning flags policy',
+    'all', allowed_values=('all', 'none', 'default')))
 vars.Add(EnumVariable(
     'tool',
     'C++ compiler toolkit to be used',
diff --git a/src/SConscript b/src/SConscript
index 53d58878..a3e27522 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -42,7 +42,10 @@ else:
         fast_optimflags = ['-fast', '-no-ipo']
     else:
         # g++ options
-        env.PrependUnique(CCFLAGS=['-Wall'])
+        if env['warnings'] == 'all':
+            env.PrependUnique(CCFLAGS=['-Wall'])
+        elif env['warnings'] == 'none':
+            env.PrependUnique(CCFLAGS=['-w'])
         fast_optimflags = ['-ffast-math']
 
     # Configure build variants

From 4a3a2bdff1372c3bc77f9b3bfadbe6aa5148726b Mon Sep 17 00:00:00 2001
From: Clemens Schmid <clemisch@tuta.io>
Date: Mon, 29 Jun 2026 15:43:45 +0200
Subject: [PATCH 2/2] Only print compiler errors

---
 SConstruct     |  7 ++++++-
 src/SConscript | 21 +++++++++------------
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/SConstruct b/SConstruct
index 69173099..ea7b6a8a 100644
--- a/SConstruct
+++ b/SConstruct
@@ -126,7 +126,10 @@ vars.Add(EnumVariable(
 vars.Add(EnumVariable(
     'warnings',
     'warning flags policy',
-    'all', allowed_values=('all', 'none', 'default')))
+    'none', allowed_values=('all', 'none', 'default')))
+vars.Add(BoolVariable(
+    'verbose',
+    'print build commands', False))
 vars.Add(EnumVariable(
     'tool',
     'C++ compiler toolkit to be used',
@@ -139,6 +142,8 @@ vars.Add(BoolVariable(
     'compile and link with the shared cctbx library', False))
 
 vars.Update(env)
+SetOption('silent', not env['verbose'])
+SetOption('no_progress', not env['verbose'])
 env.Help(MY_SCONS_HELP % vars.GenerateHelpText(env))
 
 # the CPPPATH directories are checked by scons dependency scanner
diff --git a/src/SConscript b/src/SConscript
index a3e27522..6c8e75fe 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -30,14 +30,22 @@ if env['PLATFORM'] == 'darwin':
 if platform.system().lower() == "windows":
     # Visual c++
     env.PrependUnique(CCFLAGS=['/Ox', '/EHsc', '/MD', '/DREAL=double'])
+    if env['warnings'] == 'none':
+        env.PrependUnique(CCFLAGS=['/w'])
     env.AppendUnique(CPPDEFINES={'NDEBUG': None})
     # env.AppendUnique(LINKFLAGS='/EXPORT')
 else:
     # Use double precision for objcryst's REAL
     env.PrependUnique(CCFLAGS=['-DREAL=double'])
+    if env['warnings'] == 'none':
+        env.PrependUnique(LINKFLAGS=['-w'])
     if icpc:
         # options for Intel C++ compiler on hpc dev-intel07
-        env.PrependUnique(CCFLAGS=['-w1', '-fp-model', 'precise'])
+        if env['warnings'] == 'none':
+            env.PrependUnique(CCFLAGS=['-w'])
+        else:
+            env.PrependUnique(CCFLAGS=['-w1'])
+        env.PrependUnique(CCFLAGS=['-fp-model', 'precise'])
         env.PrependUnique(LIBS=['imf'])
         fast_optimflags = ['-fast', '-no-ipo']
     else:
@@ -123,17 +131,6 @@ inc_target_path = lambda f: os.path.join(env['includedir'],
 include_targets = [inc_target_path(f) for f in env['lib_includes']]
 install_include = InstallAs(include_targets, env['lib_includes'])
 
-# DEBUG installation
-print("\nenv['lib_includes']:")
-for f in env['lib_includes']:
-    print(f"   {f.path}")
-print("\ninclude_targets:")
-for f in include_targets:
-    print(f"   {f}")
-print("\ninstall-include:")
-for f in install_include:
-    print(f"   {f.path}")
-
 Alias('install-include', install_include)
 
 # install