configure: detect 64 bit time_t

[notmuch] / configure

diff --git a/configure b/configure
index e4c738e527ec2b5f4bca68f16469a41d379717ae..2e01034bbd73816f484d4ecb6f028b839ee4e7db 100755 (executable)
--- a/configure
+++ b/configure
@@ -711,29 +711,28 @@ if [ $have_python -eq 0 ]; then
     errors=$((errors + 1))
 fi
 
-have_python3_dev=0
+have_python3=0
 if [ $have_python -eq 1 ]; then
-    printf "Checking for python3 dev..."
-    if "$python" -c 'import os, sys, sysconfig;
-assert sys.version_info >= (3,0)
-assert os.path.isfile(sysconfig.get_config_h_filename())' >/dev/null 2>&1; then
+    printf "Checking for python3 (>= 3.5)..."
+    if "$python" -c 'import sys, sysconfig; assert sys.version_info >= (3,5)'; >/dev/null 2>&1; then
         printf "Yes.\n"
-        have_python3_dev=1
+        have_python3=1
     else
-        printf "No.\n"
+        printf "No (will not install CFFI-based python bindings).\n"
     fi
 fi
 
 have_python3_cffi=0
 have_python3_pytest=0
-if [ $have_python3_dev -eq 1 ]; then
+if [ $have_python3 -eq 1 ]; then
     printf "Checking for python3 cffi and setuptools... "
-    if "$python" -c 'import cffi; import setuptools' >/dev/null 2>&1; then
+    if "$python" -c 'import cffi,setuptools; cffi.FFI().verify()' >/dev/null 2>&1; then
         printf "Yes.\n"
         have_python3_cffi=1
     else
-        printf "No.\n"
+        printf "No (will not install CFFI-based python bindings).\n"
     fi
+    rm -rf __pycache__  # cffi.FFI().verify() uses this space
 
     printf "Checking for python3 pytest (>= 3.0)... "
     conf=$(mktemp)
@@ -742,7 +741,7 @@ if [ $have_python3_dev -eq 1 ]; then
         printf "Yes.\n"
         have_python3_pytest=1
     else
-        printf "No.\n"
+        printf "No (will not test CFFI-based python bindings).\n"
     fi
     rm -f $conf
 fi
@@ -1046,6 +1045,22 @@ else
 fi
 rm -f compat/have_timegm
 
+cat <<EOF > _time_t.c
+#include <time.h>
+#include <assert.h>
+static_assert(sizeof(time_t) >= 8, "sizeof(time_t) < 8");
+EOF
+
+printf "Checking for 64 bit time_t... "
+if ${CC} -c _time_t.c -o /dev/null
+then
+    printf "Yes.\n"
+    have_64bit_time_t=1
+else
+    printf "No.\n"
+    have_64bit_time_t=0
+fi
+
 printf "Checking for dirent.d_type... "
 if ${CC} -o compat/have_d_type "$srcdir"/compat/have_d_type.c > /dev/null 2>&1
 then
@@ -1129,7 +1144,7 @@ for flag in -Wmissing-declarations; do
 done
 printf "\n\t%s\n" "${WARN_CFLAGS}"
 
-rm -f minimal minimal.c _libversion.c _libversion _libversion.sh _check_session_keys.c _check_session_keys _check_x509_validity.c _check_x509_validity
+rm -f minimal minimal.c _time_t.c _libversion.c _libversion _libversion.sh _check_session_keys.c _check_session_keys _check_x509_validity.c _check_x509_validity
 
 # construct the Makefile.config
 cat > Makefile.config <<EOF
@@ -1430,6 +1445,9 @@ NOTMUCH_HAVE_MAN=$((have_sphinx))
 NOTMUCH_HAVE_BASH=${have_bash}
 NOTMUCH_BASH_ABSOLUTE=${bash_absolute}
 
+# Whether time_t is 64 bits (or more)
+NOTMUCH_HAVE_64BIT_TIME_T=${have_64bit_time_t}
+
 # Whether perl exists, and if so where
 NOTMUCH_HAVE_PERL=${have_perl}
 NOTMUCH_PERL_ABSOLUTE=${perl_absolute}