build: cleanup configure script PKG_CHECK_MODULES

Cleanup the configure script package include lines.  There isn't a set
style for this yet, but this is an attempt to improve readability
whereas it's often one long line per library.

Change-Id: I9df8c9384b54bba30bb49193ee2dd6e532f99249
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/configure.ac b/configure.ac
index aafc80e..6bfb254 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,11 +13,36 @@
 AC_PROG_MAKE_SET
 
 # Checks for libraries.
-PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus], [], [AC_MSG_ERROR(["sdbusplus required and not found."])])
-PKG_CHECK_MODULES([SDEVENTPLUS], [sdeventplus], [], [AC_MSG_ERROR(["sdeventplus required and not found."])])
-PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces], [], [AC_MSG_ERROR(["phosphor-dbus-interfaces required and not found."])])
-PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging], [], [AC_MSG_ERROR(["phosphor-logging required and not found."])])
-PKG_CHECK_MODULES([GPIOPLUS], [gpioplus],, [AC_MSG_ERROR([Could not find gpioplus...openbmc/gpioplus package required])])
+PKG_CHECK_MODULES(
+    [SDBUSPLUS],
+    [sdbusplus],
+    [],
+    [AC_MSG_ERROR(["sdbusplus required and not found."])]
+)
+PKG_CHECK_MODULES(
+    [SDEVENTPLUS],
+    [sdeventplus],
+    [],
+    [AC_MSG_ERROR(["sdeventplus required and not found."])]
+)
+PKG_CHECK_MODULES(
+    [PHOSPHOR_DBUS_INTERFACES],
+    [phosphor-dbus-interfaces],
+    [],
+    [AC_MSG_ERROR(["phosphor-dbus-interfaces required and not found."])]
+)
+PKG_CHECK_MODULES(
+    [PHOSPHOR_LOGGING],
+    [phosphor-logging],
+    [],
+    [AC_MSG_ERROR(["phosphor-logging required and not found."])]
+)
+PKG_CHECK_MODULES(
+    [GPIOPLUS],
+    [gpioplus],
+    [],
+    [AC_MSG_ERROR([Could not find gpioplus...openbmc/gpioplus package required])]
+)
 AX_PTHREAD([], [AC_MSG_ERROR(["pthread required and not found"])])
 
 # Checks for typedefs, structures, and compiler characteristics.
@@ -25,24 +50,49 @@
 AX_APPEND_COMPILE_FLAGS([-fpic -Wall -Werror], [CXXFLAGS])
 
 # Checks for header files.
-AC_CHECK_HEADER(experimental/filesystem, [], [AC_MSG_ERROR([Could not find experimental/filesystem...libstdc++fs development package required])])
+AC_CHECK_HEADER(
+    experimental/filesystem,
+    [],
+    [AC_MSG_ERROR(
+        [Could not find experimental/filesystem...libstdc++fs development package required])
+    ]
+)
 
 # Checks for library functions.
 LT_INIT
 
 # Check/set gtest specific functions.
-PKG_CHECK_MODULES([GTEST], [gtest], [], [AC_MSG_NOTICE([gtest not found, tests will not build])])
-PKG_CHECK_MODULES([GMOCK], [gmock], [], [AC_MSG_NOTICE([gmock not found, tests will not build])])
-PKG_CHECK_MODULES([GTEST_MAIN], [gtest_main], [], [AC_MSG_NOTICE([gtest_main not found, tests will not build])])
+PKG_CHECK_MODULES(
+    [GTEST],
+    [gtest],
+    [],
+    [AC_MSG_NOTICE([gtest not found, tests will not build])]
+)
+PKG_CHECK_MODULES(
+    [GMOCK],
+    [gmock],
+    [],
+    [AC_MSG_NOTICE([gmock not found, tests will not build])]
+)
+PKG_CHECK_MODULES(
+    [GTEST_MAIN],
+    [gtest_main],
+    [],
+    [AC_MSG_NOTICE([gtest_main not found, tests will not build])]
+)
 
 # Add --enable-oe-sdk flag to configure script
 AC_ARG_ENABLE([oe-sdk],
-    AS_HELP_STRING([--enable-oe-sdk], [Link testcases absolutely against OE SDK so they can be ran within it.])
+    AS_HELP_STRING(
+        [--enable-oe-sdk],
+        [Link testcases absolutely against OE SDK so they can be ran within it.]
+    )
 )
 
 # Check for OECORE_TARGET_SYSROOT in the environment.
 AC_ARG_VAR(OECORE_TARGET_SYSROOT,
-    [Path to the OE SDK SYSROOT])
+    [Path to the OE SDK SYSROOT]
+)
 
 # Configure OESDK_TESTCASE_FLAGS environment variable, which will be later
 # used in test/Makefile.am
@@ -61,14 +111,22 @@
 
 # When a sensor access fails, just remove the sensor from dbus instead of exiting the daemon.
 AC_ARG_ENABLE([remove-from-dbus-on-fail],
-    AS_HELP_STRING([--enable-remove-from-dbus-on-fail], [Remove properties from D-Bus on access failures])
+    AS_HELP_STRING(
+        [--enable-remove-from-dbus-on-fail],
+        [Remove properties from D-Bus on access failures]
+    )
 )
 
 AC_ARG_VAR(REMOVE_ON_FAIL, [Remove properties from D-Bus on access failures])
 
-AS_IF([test "x$enable_remove_from_dbus_on_fail" == "xyes"],
-      [REMOVE_ON_FAIL="yes"]
-      AC_DEFINE_UNQUOTED([REMOVE_ON_FAIL], ["$REMOVE_ON_FAIL"], [Remove properties from D-Bus on access failures])
+AS_IF(
+    [test "x$enable_remove_from_dbus_on_fail" == "xyes"],
+    [REMOVE_ON_FAIL="yes"]
+    AC_DEFINE_UNQUOTED(
+        [REMOVE_ON_FAIL],
+        ["$REMOVE_ON_FAIL"],
+        [Remove properties from D-Bus on access failures]
+    )
 )
 
 # When a sensor read fails, set the Value on dbus with -errno.
@@ -78,18 +136,35 @@
 )
 
 AC_ARG_VAR(NEGATIVE_ERRNO_ON_FAIL, [Set sensor value to -errno on read failures])
-
-AS_IF([test "x$enable_negative_errno_on_fail" == "xyes"],
-      [NEGATIVE_ERRNO_ON_FAIL="yes"]
-      AC_DEFINE_UNQUOTED([NEGATIVE_ERRNO_ON_FAIL], ["$NEGATIVE_ERRNO_ON_FAIL"], [Set sensor value to -errno on read failures])
+AS_IF(
+    [test "x$enable_negative_errno_on_fail" == "xyes"],
+    [NEGATIVE_ERRNO_ON_FAIL="yes"]
+    AC_DEFINE_UNQUOTED(
+        [NEGATIVE_ERRNO_ON_FAIL],
+        ["$NEGATIVE_ERRNO_ON_FAIL"], [Set sensor value to -errno on read failures]
+    )
 )
 
 AC_ARG_VAR(BUSNAME_PREFIX, [The DBus busname prefix.])
 AC_ARG_VAR(SENSOR_ROOT, [The DBus sensors namespace root.])
-AS_IF([test "x$BUSNAME_PREFIX" == "x"], [BUSNAME_PREFIX="xyz.openbmc_project.Hwmon"])
-AS_IF([test "x$SENSOR_ROOT" == "x"], [SENSOR_ROOT="/xyz/openbmc_project/sensors"])
-AC_DEFINE_UNQUOTED([BUSNAME_PREFIX], ["$BUSNAME_PREFIX"], [The DBus busname prefix.])
-AC_DEFINE_UNQUOTED([SENSOR_ROOT], ["$SENSOR_ROOT"], [The DBus sensors namespace root.])
+AS_IF(
+    [test "x$BUSNAME_PREFIX" == "x"],
+    [BUSNAME_PREFIX="xyz.openbmc_project.Hwmon"]
+)
+AS_IF(
+    [test "x$SENSOR_ROOT" == "x"],
+    [SENSOR_ROOT="/xyz/openbmc_project/sensors"]
+)
+AC_DEFINE_UNQUOTED(
+    [BUSNAME_PREFIX],
+    ["$BUSNAME_PREFIX"],
+    [The DBus busname prefix.]
+)
+AC_DEFINE_UNQUOTED(
+    [SENSOR_ROOT],
+    ["$SENSOR_ROOT"],
+    [The DBus sensors namespace root.]
+)
 
 # Create configured output
 AC_CONFIG_FILES([Makefile test/Makefile tools/Makefile msl/Makefile])