Index: args.c
===================================================================
--- args.c
+++ args.c
@@ -100,6 +100,7 @@
     {"T", PRO_SPECIAL, 0, KEY, 0},
     {"U", PRO_SPECIAL, 0, KEY_FILE, 0},
     {"V", PRO_SPECIAL, 0, VERSION, 0},
+    {"P", PRO_SPECIAL, 0, IGN, 0},
     {"bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation},
     {"badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop},
     {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations},
@@ -179,13 +180,16 @@
  * given in these files.
  */
 void
-set_profile(void)
+set_profile(const char *profile_name)
 {
     FILE *f;
     char fname[PATH_MAX];
     static char prof[] = ".indent.pro";
 
-    snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof);
+    if (profile_name == NULL)
+	snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof);
+    else
+	snprintf(fname, sizeof(fname), "%s", profile_name + 2);
     if ((f = fopen(option_source = fname, "r")) != NULL) {
 	scan_profile(f);
 	(void) fclose(f);
Index: indent.h
===================================================================
--- indent.h
+++ indent.h
@@ -47,5 +47,5 @@
 void	pr_comment(void);
 void	set_defaults(void);
 void	set_option(char *);
-void	set_profile(void);
+void	set_profile(const char *);
 void	writefdef(struct fstate *f, int);
Index: indent.1
===================================================================
--- indent.1
+++ indent.1
@@ -74,6 +74,7 @@
 .Op Fl \&ldi Ns Ar n
 .Op Fl \&lp | Fl nlp
 .Op Fl npro
+.Op Fl P Ns Ar file
 .Op Fl pcs | Fl npcs
 .Op Fl psl | Fl npsl
 .Op Fl sac | Fl nsac
@@ -383,6 +384,9 @@
 and
 .Sq Pa ~/.indent.pro ,
 to be ignored.
+.It Fl P Ns Ar file
+Read profile from
+.Ar file .
 .It Fl pcs , npcs
 If true
 .Pq Fl pcs
Index: indent.c
===================================================================
--- indent.c
+++ indent.c
@@ -94,6 +94,7 @@
     int         type_code;	/* the type of token, returned by lexi */
 
     int         last_else = 0;	/* true iff last keyword was an else */
+    const char *profile_name = NULL;
 
 
     /*-----------------------------------------------*\
@@ -190,9 +191,11 @@
     for (i = 1; i < argc; ++i)
 	if (strcmp(argv[i], "-npro") == 0)
 	    break;
+	else if (argv[i][0] == '-' && argv[i][1] == 'P' && argv[i][2] != '\0')
+	    profile_name = argv[i];	/* non-empty -P (set profile) */
     set_defaults();
     if (i >= argc)
-	set_profile();
+	set_profile(profile_name);
 
     for (i = 1; i < argc; ++i) {