diff --git a/azure/posix.yml b/azure/posix.yml
index d9c3dc8..e7d5828 100644
--- a/azure/posix.yml
+++ b/azure/posix.yml
@@ -9,12 +9,12 @@ jobs:
       vmImage: ${{ parameters.vmImage }}
     variables:
       REPO_DIR: "pandas"
-      BUILD_COMMIT: "v1.0.3"
+      BUILD_COMMIT: "master"
       PLAT: "x86_64"
       NP_BUILD_DEP: "numpy==1.13.3"
       CYTHON_BUILD_DEP: "cython==0.29.16"
       NIGHTLY_BUILD_COMMIT: "master"
-      NIGHTLY_BUILD: "false"
+      NIGHTLY_BUILD: "true"
       TEST_DEPENDS: "pytest pytest-xdist hypothesis"
       TEST_DIR: "tmp_for_test"
     strategy:
diff --git a/env_vars.sh b/env_vars.sh
new file mode 100644
index 0000000..7f56717
--- /dev/null
+++ b/env_vars.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+# Environment variables for build
+MACOSX_DEPLOYMENT_TARGET=10.9
+# CFLAGS override for https://github.com/pandas-dev/pandas/issues/34114
+if [ "$(uname)" == "Linux" ]; then
+    CFLAGS="-ansi -Wno-error=maybe-uninitialized -Wno-error=sign-compare -Wno-error=return-type"
+fi
+# Macos's linker doesn't support stripping symbols
+if [ "$(uname)" != "Darwin" ]; then
+    LDFLAGS="-Wl,--strip-debug"
+    # make sure that LDFLAGS is exposed to child processes,
+    # since current version of manybuild only export CFLAGS, CPPFLAGS and FFLAGS
+    export LDFLAGS="$LDFLAGS"
+    # override the default stripping flags, since we only override CFLAGS and
+    # the current version of manybuild pass "-strip-all" to CPPFLAGS and FFLAGS
+    STRIP_FLAGS=""
+fi
+# For verbosity: report where each command came from
+export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
+set -x